Add 21/35 and 84/20, Solve 21/35 + 4 4/20 as a fraction

Add 21/35 and 84/20

1^st number: 21/35, 2^nd number: 4 4/20

21/35 + 84/20 is 24/5.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 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 20 × 7 = 140,
84/20 = 84 × 7/20 × 7 = 588/140
Add the two like fractions:
84/140 + 588/140 = 84 + 588/140 = 672/140
672/140 simplified gives 24/5
So, 21/35 + 84/20 = 24/5
In mixed form: 44/5

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