Віднімання простих дробів з однаковими знаменниками. Аркуші

'

{"items":["a27d24_fced4892ec9e414691137f535e63d862~mv2.jpg"],"styles":{"galleryType":"Columns","groupSize":1,"showArrows":false,"cubeImages":true,"cubeType":"fill","cubeRatio":1,"isVertical":true,"gallerySize":300,"collageAmount":0,"collageDensity":0,"groupTypes":"1","oneRow":false,"imageMargin":10,"galleryMargin":0,"floatingImages":0,"chooseBestGroup":true,"smartCrop":false,"hasThumbnails":false,"enableScroll":true,"isGrid":true,"isSlider":false,"isColumns":false,"isSlideshow":false,"cropOnlyFill":false,"fixedColumns":3,"enableInfiniteScroll":true,"isRTL":false,"minItemSize":50,"rotatingGroupTypes":"","rotatingCubeRatio":"","gallerySliderImageRatio":1.7777777777777777,"numberOfImagesPerRow":3,"numberOfImagesPerCol":1,"groupsPerStrip":0,"borderRadius":0,"boxShadow":0,"gridStyle":1,"mobilePanorama":false,"placeGroupsLtr":false,"viewMode":"preview","thumbnailSpacings":0,"galleryThumbnailsAlignment":"bottom","isMasonry":false,"isAutoSlideshow":false,"slideshowLoop":false,"autoSlideshowInterval":4,"useCustomButton":false,"bottomInfoHeight":0,"titlePlacement":"SHOW_ON_HOVER","galleryHorizontalAlign":"center","galleryTextAlign":"center","galleryVerticalAlign":"center","scrollSnap":false,"itemClick":"link","fullscreen":false,"allowSocial":false,"allowDownload":false,"allowTitle":true,"allowDescription":false,"loveButton":false,"loveCounter":false,"videoPlay":"onClick","scrollAnimation":"NO_EFFECT","scrollDirection":0,"overlayAnimation":"NO_EFFECT","arrowsPosition":0,"arrowsSize":23,"watermarkOpacity":40,"watermarkSize":40,"useWatermark":true,"watermarkDock":{"top":"auto","left":"auto","right":0,"bottom":0,"transform":"translate3d(0,0,0)"},"loadMoreAmount":"all","defaultShowInfoExpand":1,"allowTitleExpand":true,"allowDescriptionExpand":true,"allowLinkExpand":true,"expandInfoPosition":0,"allowFullscreenExpand":true,"fullscreenLoop":false,"galleryAlignExpand":"left","addToCartBorderWidth":1,"addToCartButtonText":"","slideshowInfoSize":200,"playButtonForAutoSlideShow":false,"allowSlideshowCounter":false,"hoveringBehaviour":"APPEARS","thumbnailSize":120,"magicLayoutSeed":1,"imageHoverAnimation":"NO_EFFECT","calculateTextBoxHeightMode":"AUTOMATIC","calculateTextBoxWidthMode":"PERCENT","textBoxHeight":0,"textBoxWidth":200,"textBoxWidthPercent":50,"textImageSpace":10,"textBoxBorderRadius":0,"textBoxBorderWidth":0,"textsVerticalPadding":0,"textsHorizontalPadding":0,"titleDescriptionSpace":6,"customButtonText":"","customButtonBorderWidth":1,"customButtonBorderRadius":0,"loadMoreButtonText":"","loadMoreButtonBorderWidth":1,"loadMoreButtonBorderRadius":0,"imageInfoType":"NO_BACKGROUND","itemBorderWidth":0,"itemBorderRadius":0,"itemEnableShadow":false,"itemShadowBlur":20,"itemShadowDirection":135,"itemShadowSize":10,"imageLoadingMode":"BLUR","expandAnimation":"NO_EFFECT","imageQuality":90,"usmToggle":false,"usm_a":0,"usm_r":0,"usm_t":0,"videoSound":false,"videoSpeed":"1","videoLoop":true,"galleryLayout":2,"gallerySizeType":"px","gallerySizePx":300,"allowHover":true,"mobileSwipeAnimation":"NO_EFFECT","gotStyleParams":true,"showVideoPlayButton":true,"modifiedGallerySize":true,"selectedLayout":"2|bottom|1|fill|true|0|true","layoutsVersion":2,"selectedLayoutV2":2,"isSlideshowFont":false,"externalInfoHeight":0,"externalInfoWidth":0},"container":{"galleryWidth":2580,"galleryHeight":1440,"scrollBase":0,"height":null,"width":null}}

У нашому класі була контрольна робота. Вчитель попросив дістати подвійні листочки з зошита. Зошит у мене був на 12 аркушів. Коли я здала контрольну, то задумалась: якщо цілий зошит — це 12/12, а я вирвала 2/12, то скільки листочків у мене залишилося? І я почала рахувати:

12/12 – 2/12=?

"Знаменники однакові, а це означає, що ми їх можемо не враховувати"— Думала я —"12-2=10"

12/12 – 2/12=10/12

Це ж легко!