Add 98/25 and 21/90
1st number: 3 23/25, 2nd number: 21/90
98/25 + 21/90 is 623/150.
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,
98/25 = 98 × 18/25 × 18 = 1764/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
21/90 = 21 × 5/90 × 5 = 105/450 - Add the two like fractions:
1764/450 + 105/450 = 1764 + 105/450 = 1869/450 - 1869/450 simplified gives 623/150
- So, 98/25 + 21/90 = 623/150
In mixed form: 423/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/25+42/90 98/50+21/90 98/25+63/90 98/75+21/90