Add 3/42 and 25/20, Solve 3/42 + 1 5/20 as a fraction

Add 3/42 and 25/20

1^st number: 3/42, 2^nd number: 1 5/20

3/42 + 25/20 is 37/28.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 42 × 10 = 420,
3/42 = 3 × 10/42 × 10 = 30/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
25/20 = 25 × 21/20 × 21 = 525/420
Add the two like fractions:
30/420 + 525/420 = 30 + 525/420 = 555/420
555/420 simplified gives 37/28
So, 3/42 + 25/20 = 37/28
In mixed form: 19/28

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