Add 12/49 and 21/63
12/49 + 21/63 is 85/147.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
12/49 = 12 × 9/49 × 9 = 108/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
21/63 = 21 × 7/63 × 7 = 147/441 - Add the two like fractions:
108/441 + 147/441 = 108 + 147/441 = 255/441 - 255/441 simplified gives 85/147
- So, 12/49 + 21/63 = 85/147
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