Add 36/21 and 20/49, Solve 1 15/21 + 20/49 as a fraction

Add 36/21 and 20/49

1^st number: 1 15/21, 2^nd number: 20/49

36/21 + 20/49 is 104/49.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147

Next, find the equivalent fraction of both fractional numbers with denominator 147
For the 1st fraction, since 21 × 7 = 147,
36/21 = 36 × 7/21 × 7 = 252/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
20/49 = 20 × 3/49 × 3 = 60/147
Add the two like fractions:
252/147 + 60/147 = 252 + 60/147 = 312/147
312/147 simplified gives 104/49
So, 36/21 + 20/49 = 104/49
In mixed form: 26/49

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