Add 10/20 and 56/42
1st number: 10/20, 2nd number: 1 14/42
10/20 + 56/42 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
10/20 = 10 × 21/20 × 21 = 210/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
56/42 = 56 × 10/42 × 10 = 560/420 - Add the two like fractions:
210/420 + 560/420 = 210 + 560/420 = 770/420 - 770/420 simplified gives 11/6
- So, 10/20 + 56/42 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40+56/42 10/20+56/84 30/20+56/42 10/60+56/42 50/20+56/42 70/20+56/42