A. 5/9+3/9= b. 7/8+1/8= c.2 1/4+3/6= d. 3 5/9+2/4+2 3/7
Jawaban:
A. 5/9 + 3/9 = 8/9
B. 7/8 + 1/8 = 8/8 = 1
C. 2 1/4 + 3/6 = 9/4 + 3/6 = 27/12 + 6/12 = 33/12
= 11/4 = 2 3/4
D. 3 5/9 + 2/4 + 2 3/7 = 32/9 + 2/4 + 17/7
= 128/36 + 18/36 + 17/7
= 146/36 + 17/7
= 73/18 + 17/7
= 511/126 + 306/126
= 817/126
= 6 61/126
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