Add 56/35 and 90/84, Solve 1 21/35 + 1 6/84 as a fraction

Add 56/35 and 90/84

1^st number: 1 21/35, 2^nd number: 1 6/84

56/35 + 90/84 is 187/70.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 35 × 12 = 420,
56/35 = 56 × 12/35 × 12 = 672/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420
Add the two like fractions:
672/420 + 450/420 = 672 + 450/420 = 1122/420
1122/420 simplified gives 187/70
So, 56/35 + 90/84 = 187/70
In mixed form: 247/70

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