Add 15/20 and 5/56
15/20 + 5/56 is 47/56.
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,
15/20 = 15 × 14/20 × 14 = 210/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
5/56 = 5 × 5/56 × 5 = 25/280 - Add the two like fractions:
210/280 + 25/280 = 210 + 25/280 = 235/280 - 235/280 simplified gives 47/56
- So, 15/20 + 5/56 = 47/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+5/56 15/20+10/56 15/40+5/56 45/20+5/56 15/20+15/56 15/60+5/56 75/20+5/56 15/20+25/56 15/20+35/56