Add 10/20 and 15/56
10/20 + 15/56 is 43/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
10/20 = 10 × 14/20 × 14 = 140/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Add the two like fractions:
140/280 + 75/280 = 140 + 75/280 = 215/280 - 215/280 simplified gives 43/56
- So, 10/20 + 15/56 = 43/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+30/56 10/40+15/56 30/20+15/56 10/20+45/56 10/60+15/56 50/20+15/56 10/20+75/56 70/20+15/56