(1/2-1/6)×5+1/4×4/5=1/3×5+1/5=5/3+1/5=28/15
11/28×8/33+13/14×25/26=2/21+25/28=83/84
4/7×5/8-2/21×3/4=5/14-1/14=2/7
1/2×1/3+1/15×(3/4-1/8)=1/6+1/15×5/8=1/6+1/24=5/24
7/12-3/24×5×12/15=7/12-1/2=1/12
6/7+3/4×5/6×2/7=6/7+5/28=29/28
（1/2-1/6)×5+1/4×4/5 11/28×8/33+13/14×25/26 4
1个回答
相关问题
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42× 9 28 = 11× 9 44 = 3 13 × 26 37 = 5 6 × 8 45 = 3 5 × 1 4
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3.25×1.4= 7.28×3.2= 52.3×21= 62.5×8.3= 75.2×3.4= 13.6×1.5= 4
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简算 （1）1又4/5×1.25+1又1/4×2.2-1又1/4 （2）13/5×8×8/13×1.25 （3）4-4/
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1×2×3×4+1=25=5²,2×3×4×5+1=121=11²,3×4×5×6+1=361=19
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简便运算的数学题1、3.26×4.5+5.2×3.26+9.7×6.742、15.8×5.8+4.2×4.2+11.6×
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直接写出得数．6× 1 7 = 4 5 × 3 4 = 11 26 × 13 22 = 3 4 × 1 2 = 1 10
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直接写出得数．8-5.4= 0.4×8×25= 3.14÷6.28= ( 1 2 - 1 6 )×12 = 8- 3 4
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0×1×2×3+1=1=1^2 1×2×3×4+1=25=5^2 2×3×4×5+1=121=11^2 3×4×5×6+
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5\8×1\4×24\25（1\2+1\4+5\6)×1225-25×74\75
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1/2×4+1/3×5+1/4×6+1/5×7+……+1/8×10+1/9×11