Add 63/12 and 4/40, Solve 5 3/12 + 4/40 as a fraction

Add 63/12 and 4/40

1^st number: 5 3/12, 2^nd number: 4/40

63/12 + 4/40 is 107/20.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
63/12 = 63 × 10/12 × 10 = 630/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
4/40 = 4 × 3/40 × 3 = 12/120
Add the two like fractions:
630/120 + 12/120 = 630 + 12/120 = 642/120
642/120 simplified gives 107/20
So, 63/12 + 4/40 = 107/20
In mixed form: 57/20

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