Add 30/20 and 56/70
1st number: 1 10/20, 2nd number: 56/70
30/20 + 56/70 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
30/20 = 30 × 7/20 × 7 = 210/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
56/70 = 56 × 2/70 × 2 = 112/140 - Add the two like fractions:
210/140 + 112/140 = 210 + 112/140 = 322/140 - 322/140 simplified gives 23/10
- So, 30/20 + 56/70 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+56/70 30/40+56/70 90/20+56/70 30/60+56/70