Add 12/49 and 40/63
12/49 + 40/63 is 388/441.
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,
40/63 = 40 × 7/63 × 7 = 280/441 - Add the two like fractions:
108/441 + 280/441 = 108 + 280/441 = 388/441 - So, 12/49 + 40/63 = 388/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49+40/63 12/49+80/63 12/98+40/63 36/49+40/63 60/49+40/63 84/49+40/63