Add 24/25 and 21/90
24/25 + 21/90 is 179/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
24/25 = 24 × 18/25 × 18 = 432/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
21/90 = 21 × 5/90 × 5 = 105/450 - Add the two like fractions:
432/450 + 105/450 = 432 + 105/450 = 537/450 - 537/450 simplified gives 179/150
- So, 24/25 + 21/90 = 179/150
In mixed form: 129/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/25+21/90 24/25+42/90 24/50+21/90 72/25+21/90 24/25+63/90 24/75+21/90