Add 21/25 and 56/40
1st number: 21/25, 2nd number: 1 16/40
21/25 + 56/40 is 56/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
21/25 = 21 × 8/25 × 8 = 168/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
56/40 = 56 × 5/40 × 5 = 280/200 - Add the two like fractions:
168/200 + 280/200 = 168 + 280/200 = 448/200 - 448/200 simplified gives 56/25
- So, 21/25 + 56/40 = 56/25
In mixed form: 26/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25+56/40 21/50+56/40 21/25+56/80 63/25+56/40 21/75+56/40