Add 90/20 and 35/63
1st number: 4 10/20, 2nd number: 35/63
90/20 + 35/63 is 91/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
90/20 = 90 × 63/20 × 63 = 5670/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
35/63 = 35 × 20/63 × 20 = 700/1260 - Add the two like fractions:
5670/1260 + 700/1260 = 5670 + 700/1260 = 6370/1260 - 6370/1260 simplified gives 91/18
- So, 90/20 + 35/63 = 91/18
In mixed form: 51/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+70/63 90/40+35/63 90/60+35/63