Add 90/7 and 20/24
1st number: 12 6/7, 2nd number: 20/24
90/7 + 20/24 is 575/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 7 × 24 = 168,
90/7 = 90 × 24/7 × 24 = 2160/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
20/24 = 20 × 7/24 × 7 = 140/168 - Add the two like fractions:
2160/168 + 140/168 = 2160 + 140/168 = 2300/168 - 2300/168 simplified gives 575/42
- So, 90/7 + 20/24 = 575/42
In mixed form: 1329/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+40/24 90/14+20/24 90/7+20/48 90/7+60/24 90/21+20/24 90/7+20/72 90/35+20/24 90/49+20/24