Add 28/63 and 35/20, Solve 28/63 + 1 15/20 as a fraction

Add 28/63 and 35/20

1^st number: 28/63, 2^nd number: 1 15/20

28/63 + 35/20 is 79/36.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 63 × 20 = 1260,
28/63 = 28 × 20/63 × 20 = 560/1260
Likewise, for the 2nd fraction, since 20 × 63 = 1260,
35/20 = 35 × 63/20 × 63 = 2205/1260
Add the two like fractions:
560/1260 + 2205/1260 = 560 + 2205/1260 = 2765/1260
2765/1260 simplified gives 79/36
So, 28/63 + 35/20 = 79/36
In mixed form: 27/36

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