Add 56/15 and 90/84, Solve 3 11/15 + 1 6/84 as a fraction

Add 56/15 and 90/84

1^st number: 3 11/15, 2^nd number: 1 6/84

56/15 + 90/84 is 1009/210.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
56/15 = 56 × 28/15 × 28 = 1568/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420
Add the two like fractions:
1568/420 + 450/420 = 1568 + 450/420 = 2018/420
2018/420 simplified gives 1009/210
So, 56/15 + 90/84 = 1009/210
In mixed form: 4169/210

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