Add 15/63 and 7/15
15/63 + 7/15 is 74/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
7/15 = 7 × 21/15 × 21 = 147/315 - Add the two like fractions:
75/315 + 147/315 = 75 + 147/315 = 222/315 - 222/315 simplified gives 74/105
- So, 15/63 + 7/15 = 74/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63+7/15 15/63+14/15 15/63+7/30 45/63+7/15 15/63+21/15 15/63+7/45 75/63+7/15 15/63+35/15 15/63+7/75 15/63+49/15