Add 70/63 and 20/36
1st number: 1 7/63, 2nd number: 20/36
70/63 + 20/36 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
70/63 = 70 × 4/63 × 4 = 280/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
20/36 = 20 × 7/36 × 7 = 140/252 - Add the two like fractions:
280/252 + 140/252 = 280 + 140/252 = 420/252 - 420/252 simplified gives 5/3
- So, 70/63 + 20/36 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63+40/36 70/63+20/72 70/63+60/36