Add 20/25 and 56/63
20/25 + 56/63 is 76/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 25 × 63 = 1575,
20/25 = 20 × 63/25 × 63 = 1260/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
56/63 = 56 × 25/63 × 25 = 1400/1575 - Add the two like fractions:
1260/1575 + 1400/1575 = 1260 + 1400/1575 = 2660/1575 - 2660/1575 simplified gives 76/45
- So, 20/25 + 56/63 = 76/45
In mixed form: 131/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25+56/63 20/50+56/63 60/25+56/63 20/75+56/63