Add 12/20 and 40/63
12/20 + 40/63 is 389/315.
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,
40/63 = 40 × 20/63 × 20 = 800/1260 - Add the two like fractions:
756/1260 + 800/1260 = 756 + 800/1260 = 1556/1260 - 1556/1260 simplified gives 389/315
- So, 12/20 + 40/63 = 389/315
In mixed form: 174/315
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