Add 20/75 and 63/70
20/75 + 63/70 is 7/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
20/75 = 20 × 14/75 × 14 = 280/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
63/70 = 63 × 15/70 × 15 = 945/1050 - Add the two like fractions:
280/1050 + 945/1050 = 280 + 945/1050 = 1225/1050 - 1225/1050 simplified gives 7/6
- So, 20/75 + 63/70 = 7/6
In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75+63/70 60/75+63/70