Add 72/40 and 56/54
1st number: 1 32/40, 2nd number: 1 2/54
72/40 + 56/54 is 383/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
72/40 = 72 × 27/40 × 27 = 1944/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
56/54 = 56 × 20/54 × 20 = 1120/1080 - Add the two like fractions:
1944/1080 + 1120/1080 = 1944 + 1120/1080 = 3064/1080 - 3064/1080 simplified gives 383/135
- So, 72/40 + 56/54 = 383/135
In mixed form: 2113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80+56/54