Add 1/20 and 54/56
1/20 + 54/56 is 71/70.
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,
1/20 = 1 × 14/20 × 14 = 14/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
54/56 = 54 × 5/56 × 5 = 270/280 - Add the two like fractions:
14/280 + 270/280 = 14 + 270/280 = 284/280 - 284/280 simplified gives 71/70
- So, 1/20 + 54/56 = 71/70
In mixed form: 11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+54/56 1/40+54/56 3/20+54/56 1/60+54/56 5/20+54/56 7/20+54/56