Add 56/70 and 35/20
1st number: 56/70, 2nd number: 1 15/20
56/70 + 35/20 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
56/70 = 56 × 2/70 × 2 = 112/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
35/20 = 35 × 7/20 × 7 = 245/140 - Add the two like fractions:
112/140 + 245/140 = 112 + 245/140 = 357/140 - 357/140 simplified gives 51/20
- So, 56/70 + 35/20 = 51/20
In mixed form: 211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+70/20 56/70+35/40 56/70+35/60