A.4/7+7/9= B.4 3/8+5/8=

A.4/7+7/9 =
36+49/63 =
95/63
B.4 3/8+5/8 =
35/8+5/8 =
40/8 = 5

A. 4/7 + 7/9 = 4×9/ 7×9 + 7×7/ 9×7 = 36/63 + 49/63 = 85/63
B. 4 3/8+5/8= 20/8+5/8= 20×8/8×8 + 5×8/8×8 = 160/64 + 40/64 = 200/64
#sorry kalau salah soalnya ini setau aku karena aku pernah di ajarinnya gini