Add 90/84 and 56/60, Solve 1 6/84 + 56/60 as a fraction

Add 90/84 and 56/60

1^st number: 1 6/84, 2^nd number: 56/60

90/84 + 56/60 is 421/210.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
56/60 = 56 × 7/60 × 7 = 392/420
Add the two like fractions:
450/420 + 392/420 = 450 + 392/420 = 842/420
842/420 simplified gives 421/210
So, 90/84 + 56/60 = 421/210
In mixed form: 21/210

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