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7/8+1/6+2/3的和乘48能简便的要简便

(7/8+1/6+2/3)×48 =7/8×48+1/6×48+2/3×48 =42+8+32 =8...

括号7/8加1/6加2/3括号乘48简便运算。 括号7/8加1/6加2/3括号乘48 =48*7...

这道题这样算,去掉括号就是6/7+1/7+1/6-3/8=1/6+5/8=19/24

原式 =7/8x24+1/6x24-2/3x24 =7x3+1x4-2x8 =21+4-16 ...

7/8+5/12-1/6的和乘48能简算 =7/8x48+5/12x48-1/6x48 =42+20...

1/2+1/3+1/4+1/5+1/6+1/7+1/8+1/9+......+1/100≈ln100...

5/7乘3/5除以6/7 = 1/2 5/8除以(2/3除以2/5) = 3/8 8/1...

1+2+3+4+5+6+7+8+9+10+…+100 =100×(100+1)2 =50×101=5...

7/8+5/6-1/6 =7/8+(5/6-1/6) =7/8+4/6 =7/8+2/3 =21/2...

7/6+8/7x7/3+5x7/3=7/6+8/3+35/3=7/6+43/3=7/6+86/6=9...

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