Add 84/7 and 25/8, Solve 12 0/7 + 3 1/8 as a fraction

Add 84/7 and 25/8

1^st number: 12 0/7, 2^nd number: 3 1/8

84/7 + 25/8 is 121/8.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 7 × 8 = 56,
84/7 = 84 × 8/7 × 8 = 672/56
Likewise, for the 2nd fraction, since 8 × 7 = 56,
25/8 = 25 × 7/8 × 7 = 175/56
Add the two like fractions:
672/56 + 175/56 = 672 + 175/56 = 847/56
847/56 simplified gives 121/8
So, 84/7 + 25/8 = 121/8
In mixed form: 151/8

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