Add 90/84 and 81/56, Solve 1 6/84 + 1 25/56 as a fraction

Add 90/84 and 81/56

1^st number: 1 6/84, 2^nd number: 1 25/56

90/84 + 81/56 is 141/56.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 84 × 2 = 168,
90/84 = 90 × 2/84 × 2 = 180/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168
Add the two like fractions:
180/168 + 243/168 = 180 + 243/168 = 423/168
423/168 simplified gives 141/56
So, 90/84 + 81/56 = 141/56
In mixed form: 229/56

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