Add 72/20 and 14/56
1st number: 3 12/20, 2nd number: 14/56
72/20 + 14/56 is 77/20.
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,
72/20 = 72 × 14/20 × 14 = 1008/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
14/56 = 14 × 5/56 × 5 = 70/280 - Add the two like fractions:
1008/280 + 70/280 = 1008 + 70/280 = 1078/280 - 1078/280 simplified gives 77/20
- So, 72/20 + 14/56 = 77/20
In mixed form: 317/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+28/56 72/40+14/56 72/20+42/56 72/60+14/56 72/20+70/56 72/20+98/56