Add 45/4 and 72/56
1st number: 11 1/4, 2nd number: 1 16/56
45/4 + 72/56 is 351/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 4 × 14 = 56,
45/4 = 45 × 14/4 × 14 = 630/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
72/56 = 72 × 1/56 × 1 = 72/56 - Add the two like fractions:
630/56 + 72/56 = 630 + 72/56 = 702/56 - 702/56 simplified gives 351/28
- So, 45/4 + 72/56 = 351/28
In mixed form: 1215/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+72/56 45/8+72/56 45/12+72/56 45/20+72/56 45/28+72/56