Add 81/8 and 90/84, Solve 10 1/8 + 1 6/84 as a fraction

Add 81/8 and 90/84

1^st number: 10 1/8, 2^nd number: 1 6/84

81/8 + 90/84 is 627/56.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
81/8 = 81 × 21/8 × 21 = 1701/168
Likewise, for the 2nd fraction, since 84 × 2 = 168,
90/84 = 90 × 2/84 × 2 = 180/168
Add the two like fractions:
1701/168 + 180/168 = 1701 + 180/168 = 1881/168
1881/168 simplified gives 627/56
So, 81/8 + 90/84 = 627/56
In mixed form: 1111/56

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