Add 90/25 and 9/7
1st number: 3 15/25, 2nd number: 1 2/7
90/25 + 9/7 is 171/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
90/25 = 90 × 7/25 × 7 = 630/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
9/7 = 9 × 25/7 × 25 = 225/175 - Add the two like fractions:
630/175 + 225/175 = 630 + 225/175 = 855/175 - 855/175 simplified gives 171/35
- So, 90/25 + 9/7 = 171/35
In mixed form: 431/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+18/7 90/50+9/7 90/25+9/14 90/25+27/7 90/75+9/7 90/25+9/21 90/25+45/7 90/25+9/35 90/25+63/7 90/25+9/49