Add 56/72 and 45/30
1st number: 56/72, 2nd number: 1 15/30
56/72 + 45/30 is 41/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
56/72 = 56 × 5/72 × 5 = 280/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
45/30 = 45 × 12/30 × 12 = 540/360 - Add the two like fractions:
280/360 + 540/360 = 280 + 540/360 = 820/360 - 820/360 simplified gives 41/18
- So, 56/72 + 45/30 = 41/18
In mixed form: 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72+90/30 56/72+45/60 56/72+45/90