Add 63/20 and 12/40
1st number: 3 3/20, 2nd number: 12/40
63/20 + 12/40 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
63/20 = 63 × 2/20 × 2 = 126/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
12/40 = 12 × 1/40 × 1 = 12/40 - Add the two like fractions:
126/40 + 12/40 = 126 + 12/40 = 138/40 - 138/40 simplified gives 69/20
- So, 63/20 + 12/40 = 69/20
In mixed form: 39/20
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