简算.3/4×4/5÷3/4×5/4 8/13÷7+1/7×6/13 (3/5+1-1/10)
简算.3/4×4/5÷3/4×5/4 8/13÷7+1/7×6/13 (3/5+1-1/10)
(简算) (7/15-1/3)÷(1/3+1/5) (3/4+1/2)÷5/8 2/13+3/4÷9/10+1/6 [3
3 1/8÷【(4 5/12-3 13/24)×4/7+(3 1/18-2 7/12)×1 10/17]=?
简便运算,3-5/8÷25/28-3/10…二、4/5×[13/16÷(3/4+1/3)]
(1/4-1/6)x12 1÷2分之1÷1 (0.18+0.9)÷9 3/7÷1/3 1-1÷7 3/7+5/13-3/
13分之7×4分之1×5分之6×7分之10=?5分之2×16分之7+3分之4÷7分之16=?8÷3分之4-4分之18÷0
3-8/9×6/5÷32/3 (1-1/4×8/9)×9/7 (5/6+1/3)÷(3/4-2/3) 3/4÷(1/2-
【简算】 (3/4-2/3)÷1/5 4/5×7/8+7/8÷5 (1-8/15×3/4)÷3/5 (3/8+2/17)
9÷1×8+7-2×3+4-5
简算(1+1÷2+1÷3+1÷4)×(1÷2+1÷3+1÷4+1÷5)-(1+1÷2+1÷3+1÷4+1÷5)×(1÷2
分数乘除法简便运算15×1/6+13/21×14+5/6×15+13/21×7{1-(1/4+1/8)}÷3/42356
10÷9分之5+6分之1×4 6分之1×3分之2÷(5分之4-15分之8) 7分之9÷5反之11+9反之2×11反之5