Add 4/42 and 70/21, Solve 4/42 + 3 7/21 as a fraction

Add 4/42 and 70/21

1^st number: 4/42, 2^nd number: 3 7/21

4/42 + 70/21 is 24/7.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
4/42 = 4 × 1/42 × 1 = 4/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
70/21 = 70 × 2/21 × 2 = 140/42
Add the two like fractions:
4/42 + 140/42 = 4 + 140/42 = 144/42
144/42 simplified gives 24/7
So, 4/42 + 70/21 = 24/7
In mixed form: 33/7

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