Add 63/70 and 20/36
63/70 + 20/36 is 131/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
63/70 = 63 × 18/70 × 18 = 1134/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
20/36 = 20 × 35/36 × 35 = 700/1260 - Add the two like fractions:
1134/1260 + 700/1260 = 1134 + 700/1260 = 1834/1260 - 1834/1260 simplified gives 131/90
- So, 63/70 + 20/36 = 131/90
In mixed form: 141/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70+40/36 63/70+20/72 63/70+60/36