Add 70/63 and 3/20
1st number: 1 7/63, 2nd number: 3/20
70/63 + 3/20 is 227/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
70/63 = 70 × 20/63 × 20 = 1400/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
3/20 = 3 × 63/20 × 63 = 189/1260 - Add the two like fractions:
1400/1260 + 189/1260 = 1400 + 189/1260 = 1589/1260 - 1589/1260 simplified gives 227/180
- So, 70/63 + 3/20 = 227/180
In mixed form: 147/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63+6/20 70/63+3/40 70/63+9/20 70/63+3/60 70/63+15/20 70/63+21/20