Add 4/20 and 56/42
1st number: 4/20, 2nd number: 1 14/42
4/20 + 56/42 is 23/15.
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,
4/20 = 4 × 21/20 × 21 = 84/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
56/42 = 56 × 10/42 × 10 = 560/420 - Add the two like fractions:
84/420 + 560/420 = 84 + 560/420 = 644/420 - 644/420 simplified gives 23/15
- So, 4/20 + 56/42 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+56/42 4/40+56/42 4/20+56/84 12/20+56/42 4/60+56/42 28/20+56/42