Add 56/35 and 90/12, Solve 1 21/35 + 7 6/12 as a fraction

Add 56/35 and 90/12

1^st number: 1 21/35, 2^nd number: 7 6/12

56/35 + 90/12 is 91/10.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 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 12 × 35 = 420,
90/12 = 90 × 35/12 × 35 = 3150/420
Add the two like fractions:
672/420 + 3150/420 = 672 + 3150/420 = 3822/420
3822/420 simplified gives 91/10
So, 56/35 + 90/12 = 91/10
In mixed form: 91/10

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