Add 63/12 and 63/35, Solve 5 3/12 + 1 28/35 as a fraction

Add 63/12 and 63/35

1^st number: 5 3/12, 2^nd number: 1 28/35

63/12 + 63/35 is 141/20.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
63/12 = 63 × 35/12 × 35 = 2205/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
63/35 = 63 × 12/35 × 12 = 756/420
Add the two like fractions:
2205/420 + 756/420 = 2205 + 756/420 = 2961/420
2961/420 simplified gives 141/20
So, 63/12 + 63/35 = 141/20
In mixed form: 71/20

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