Add 20/56 and 4/5
20/56 + 4/5 is 81/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
20/56 = 20 × 5/56 × 5 = 100/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
4/5 = 4 × 56/5 × 56 = 224/280 - Add the two like fractions:
100/280 + 224/280 = 100 + 224/280 = 324/280 - 324/280 simplified gives 81/70
- So, 20/56 + 4/5 = 81/70
In mixed form: 111/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+4/5 20/56+8/5 20/56+4/10 60/56+4/5 20/56+12/5 20/56+4/15 20/56+20/5 20/56+4/25 20/56+28/5 20/56+4/35