Add 56/20 and 45/7
1st number: 2 16/20, 2nd number: 6 3/7
56/20 + 45/7 is 323/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
56/20 = 56 × 7/20 × 7 = 392/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
45/7 = 45 × 20/7 × 20 = 900/140 - Add the two like fractions:
392/140 + 900/140 = 392 + 900/140 = 1292/140 - 1292/140 simplified gives 323/35
- So, 56/20 + 45/7 = 323/35
In mixed form: 98/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+90/7 56/40+45/7 56/20+45/14 56/60+45/7 56/20+45/21 56/20+45/35 56/20+45/49