Add 12/20 and 30/63
12/20 + 30/63 is 113/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
12/20 = 12 × 63/20 × 63 = 756/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
30/63 = 30 × 20/63 × 20 = 600/1260 - Add the two like fractions:
756/1260 + 600/1260 = 756 + 600/1260 = 1356/1260 - 1356/1260 simplified gives 113/105
- So, 12/20 + 30/63 = 113/105
In mixed form: 18/105
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