Add 40/25 and 21/54
1st number: 1 15/25, 2nd number: 21/54
40/25 + 21/54 is 179/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 25 × 54 = 1350,
40/25 = 40 × 54/25 × 54 = 2160/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
21/54 = 21 × 25/54 × 25 = 525/1350 - Add the two like fractions:
2160/1350 + 525/1350 = 2160 + 525/1350 = 2685/1350 - 2685/1350 simplified gives 179/90
- So, 40/25 + 21/54 = 179/90
In mixed form: 189/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/25+21/54 40/25+42/54 40/50+21/54 40/25+63/54 40/75+21/54