add 3 whole 7/8+2 whole 5/12
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Answer:
6.375
Step-by-step explanation:
3 whole 7 upon 8 = 31 upon 8
2 whole 5 upon 10 = 25 upon 10
31 upon 8 + 25 upon 10 =
= 5×31 + 4×25 upon 40
= 155 + 100 upon 40
= 255 upon 40
= 6. 375
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