Add 21/35 and 80/28, Solve 21/35 + 2 24/28 as a fraction

Add 21/35 and 80/28

1^st number: 21/35, 2^nd number: 2 24/28

21/35 + 80/28 is 121/35.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 28 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 35 × 4 = 140,
21/35 = 21 × 4/35 × 4 = 84/140
Likewise, for the 2nd fraction, since 28 × 5 = 140,
80/28 = 80 × 5/28 × 5 = 400/140
Add the two like fractions:
84/140 + 400/140 = 84 + 400/140 = 484/140
484/140 simplified gives 121/35
So, 21/35 + 80/28 = 121/35
In mixed form: 316/35

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