Add 72/56 and 75/40
1st number: 1 16/56, 2nd number: 1 35/40
72/56 + 75/40 is 177/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
72/56 = 72 × 5/56 × 5 = 360/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
75/40 = 75 × 7/40 × 7 = 525/280 - Add the two like fractions:
360/280 + 525/280 = 360 + 525/280 = 885/280 - 885/280 simplified gives 177/56
- So, 72/56 + 75/40 = 177/56
In mixed form: 39/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56+75/80