Add 56/35 and 15/21, Solve 1 21/35 + 15/21 as a fraction

Add 56/35 and 15/21

1^st number: 1 21/35, 2^nd number: 15/21

56/35 + 15/21 is 81/35.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 35 × 3 = 105,
56/35 = 56 × 3/35 × 3 = 168/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
15/21 = 15 × 5/21 × 5 = 75/105
Add the two like fractions:
168/105 + 75/105 = 168 + 75/105 = 243/105
243/105 simplified gives 81/35
So, 56/35 + 15/21 = 81/35
In mixed form: 211/35

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