Add 10/15 and 7/63
10/15 + 7/63 is 7/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
10/15 = 10 × 21/15 × 21 = 210/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
7/63 = 7 × 5/63 × 5 = 35/315 - Add the two like fractions:
210/315 + 35/315 = 210 + 35/315 = 245/315 - 245/315 simplified gives 7/9
- So, 10/15 + 7/63 = 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+7/63 10/15+14/63 10/30+7/63 30/15+7/63 10/15+21/63 10/45+7/63 50/15+7/63 10/15+35/63 10/75+7/63 70/15+7/63 10/15+49/63