Add 15/56 and 5/20
15/56 + 5/20 is 29/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
5/20 = 5 × 14/20 × 14 = 70/280 - Add the two like fractions:
75/280 + 70/280 = 75 + 70/280 = 145/280 - 145/280 simplified gives 29/56
- So, 15/56 + 5/20 = 29/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+5/20 15/56+10/20 15/56+5/40 45/56+5/20 15/56+15/20 15/56+5/60 75/56+5/20 15/56+25/20 15/56+35/20