Add 20/35 and 20/63
20/35 + 20/63 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
20/35 = 20 × 9/35 × 9 = 180/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
20/63 = 20 × 5/63 × 5 = 100/315 - Add the two like fractions:
180/315 + 100/315 = 180 + 100/315 = 280/315 - 280/315 simplified gives 8/9
- So, 20/35 + 20/63 = 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35+20/63 20/35+40/63 20/70+20/63 60/35+20/63 20/35+60/63