Several simple primary school mathematics calculation problems What can be calculated simply should be calculated simply: 11.58-（5/11+1.58） 24*（1/3+8/3+7/12） 120.8*3/4-0.8*3/4 99 * 97 / 98 thank you {(this symbol means multiplication *) (/ followed by denominator) | Math enthusiast | Mathematical art

Several simple primary school mathematics calculation problems What can be calculated simply should be calculated simply: 11.58-（5/11+1.58） 24（1/3+8/3+7/12） 120.83/4-0.83/4 99 97 / 98 thank you {(this symbol means multiplication *) (/ followed by denominator)

11.58-（5/11+1.58）=11.58-5/11-1.58=11.58-1.58-5/11=10-5/11=9 6/1124*（1/3+8/3+7/12）=24*（1/3+8/3)+24*(7/12）=24*3+14=86120.8*3/4-0.8*3/4=(120.8-0.8)*3/4=120*3/4=9099*97/98=98*97/98 + 97/98=97+97/98=...

97 and 1 / 50 * 1 / 49 + 77 and 1 / 40 * 1 / 39 + 57 and 1 / 30 * 1 / 29 =?

=(98-49/50)*1/49+(78-39/40)*1/39+(58-29/30)*1/29
=98*1/49-49/50*1/49+78*1/39-39/40*1/39+58*1/29-29/30*1/29
=2-1/50+2-1/40+2-1/30
=6-47/600
=553 / 600

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