Add 7/25 and 21/28
7/25 + 21/28 is 103/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 28 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 25 × 28 = 700,
7/25 = 7 × 28/25 × 28 = 196/700 - Likewise, for the 2nd fraction, since 28 × 25 = 700,
21/28 = 21 × 25/28 × 25 = 525/700 - Add the two like fractions:
196/700 + 525/700 = 196 + 525/700 = 721/700 - 721/700 simplified gives 103/100
- So, 7/25 + 21/28 = 103/100
In mixed form: 13/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/25+21/28 7/25+42/28 7/50+21/28 7/25+21/56 21/25+21/28 7/25+63/28 7/75+21/28 7/25+21/84 35/25+21/28 49/25+21/28