Add 27/7 and 75/9, Solve 3 6/7 + 8 3/9 as a fraction

Add 27/7 and 75/9

1^st number: 3 6/7, 2^nd number: 8 3/9

27/7 + 75/9 is 256/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
27/7 = 27 × 9/7 × 9 = 243/63
Likewise, for the 2nd fraction, since 9 × 7 = 63,
75/9 = 75 × 7/9 × 7 = 525/63
Add the two like fractions:
243/63 + 525/63 = 243 + 525/63 = 768/63
768/63 simplified gives 256/21
So, 27/7 + 75/9 = 256/21
In mixed form: 124/21

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