Add 20/6 and 15/63, Solve 3 2/6 + 15/63 as a fraction

Add 20/6 and 15/63

1^st number: 3 2/6, 2^nd number: 15/63

20/6 + 15/63 is 25/7.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 6 × 21 = 126,
20/6 = 20 × 21/6 × 21 = 420/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126
Add the two like fractions:
420/126 + 30/126 = 420 + 30/126 = 450/126
450/126 simplified gives 25/7
So, 20/6 + 15/63 = 25/7
In mixed form: 34/7

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