Add 90/25 and 20/63
1st number: 3 15/25, 2nd number: 20/63
90/25 + 20/63 is 1234/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 25 × 63 = 1575,
90/25 = 90 × 63/25 × 63 = 5670/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
20/63 = 20 × 25/63 × 25 = 500/1575 - Add the two like fractions:
5670/1575 + 500/1575 = 5670 + 500/1575 = 6170/1575 - 6170/1575 simplified gives 1234/315
- So, 90/25 + 20/63 = 1234/315
In mixed form: 3289/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+40/63 90/50+20/63 90/25+60/63 90/75+20/63