Add 20/24 and 90/63
1st number: 20/24, 2nd number: 1 27/63
20/24 + 90/63 is 95/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 24 × 21 = 504,
20/24 = 20 × 21/24 × 21 = 420/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Add the two like fractions:
420/504 + 720/504 = 420 + 720/504 = 1140/504 - 1140/504 simplified gives 95/42
- So, 20/24 + 90/63 = 95/42
In mixed form: 211/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24+90/63 20/48+90/63 60/24+90/63 20/72+90/63