Add 40/15 and 36/63
1st number: 2 10/15, 2nd number: 36/63
40/15 + 36/63 is 68/21.
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,
40/15 = 40 × 21/15 × 21 = 840/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
36/63 = 36 × 5/63 × 5 = 180/315 - Add the two like fractions:
840/315 + 180/315 = 840 + 180/315 = 1020/315 - 1020/315 simplified gives 68/21
- So, 40/15 + 36/63 = 68/21
In mixed form: 35/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+36/63 40/15+72/63 40/30+36/63 40/45+36/63 40/75+36/63