Add 15/63 and 12/49
15/63 + 12/49 is 71/147.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 63 × 7 = 441,
15/63 = 15 × 7/63 × 7 = 105/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
12/49 = 12 × 9/49 × 9 = 108/441 - Add the two like fractions:
105/441 + 108/441 = 105 + 108/441 = 213/441 - 213/441 simplified gives 71/147
- So, 15/63 + 12/49 = 71/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63+12/49 15/63+24/49 15/63+12/98 45/63+12/49 15/63+36/49 75/63+12/49 15/63+60/49 15/63+84/49