Add 72/40 and 30/56
1st number: 1 32/40, 2nd number: 30/56
72/40 + 30/56 is 327/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
30/56 = 30 × 5/56 × 5 = 150/280 - Add the two like fractions:
504/280 + 150/280 = 504 + 150/280 = 654/280 - 654/280 simplified gives 327/140
- So, 72/40 + 30/56 = 327/140
In mixed form: 247/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+60/56 72/80+30/56 72/40+90/56