Add 6/42 and 25/20, Solve 6/42 + 1 5/20 as a fraction

Add 6/42 and 25/20

1^st number: 6/42, 2^nd number: 1 5/20

6/42 + 25/20 is 39/28.

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,
6/42 = 6 × 10/42 × 10 = 60/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
25/20 = 25 × 21/20 × 21 = 525/420
Add the two like fractions:
60/420 + 525/420 = 60 + 525/420 = 585/420
585/420 simplified gives 39/28
So, 6/42 + 25/20 = 39/28
In mixed form: 111/28

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