Add 36/20 and 45/56
1st number: 1 16/20, 2nd number: 45/56
36/20 + 45/56 is 729/280.
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,
36/20 = 36 × 14/20 × 14 = 504/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
45/56 = 45 × 5/56 × 5 = 225/280 - Add the two like fractions:
504/280 + 225/280 = 504 + 225/280 = 729/280 - So, 36/20 + 45/56 = 729/280
In mixed form: 2169/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+45/56 36/20+90/56 36/40+45/56 36/60+45/56