Add 15/63 and 90/35
1st number: 15/63, 2nd number: 2 20/35
15/63 + 90/35 is 59/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 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 35 × 9 = 315,
90/35 = 90 × 9/35 × 9 = 810/315 - Add the two like fractions:
75/315 + 810/315 = 75 + 810/315 = 885/315 - 885/315 simplified gives 59/21
- So, 15/63 + 90/35 = 59/21
In mixed form: 217/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63+90/35 15/63+90/70 45/63+90/35 75/63+90/35