Add 56/42 and 30/20
1st number: 1 14/42, 2nd number: 1 10/20
56/42 + 30/20 is 17/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
56/42 = 56 × 10/42 × 10 = 560/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
30/20 = 30 × 21/20 × 21 = 630/420 - Add the two like fractions:
560/420 + 630/420 = 560 + 630/420 = 1190/420 - 1190/420 simplified gives 17/6
- So, 56/42 + 30/20 = 17/6
In mixed form: 25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+60/20 56/84+30/20 56/42+30/40 56/42+90/20 56/42+30/60