Add 70/63 and 20/24
1st number: 1 7/63, 2nd number: 20/24
70/63 + 20/24 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 24 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
70/63 = 70 × 8/63 × 8 = 560/504 - Likewise, for the 2nd fraction, since 24 × 21 = 504,
20/24 = 20 × 21/24 × 21 = 420/504 - Add the two like fractions:
560/504 + 420/504 = 560 + 420/504 = 980/504 - 980/504 simplified gives 35/18
- So, 70/63 + 20/24 = 35/18
In mixed form: 117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63+40/24 70/63+20/48 70/63+60/24 70/63+20/72