六年级分数乘除法口算

16× eq \f(9,8) = 38× eq \f(5,16) = 15× eq \f(1,5) =

1516 712 542 313 98 27 16×= ×3 = ×15= ×6 = ×5= 516 34 ×4 = 13 15 23 1×= 143143 ×16= 5×= 12×= 38×= 38 1321 15 25 38 ×4 = ×6 = 15×= 4×= 64×= 67 98 320 23 89 28×= ×18= ×7= ×21= ×12= 112 89 45 14×= 527 37 45×= 2×= 58 56×= 48×= 815 179 ×16= ×36= 829 524 38 59 5×= 0×= 56×= 5×= ×29= ×30 = 56 49 617 85 89 15 ×2= 18×= ×2= 8×= 60×= 710 35 34×= 34 38 15×= 56 ×9 = 10×= ×2 = 12×=