Add 7/56 and 72/45
1st number: 7/56, 2nd number: 1 27/45
7/56 + 72/45 is 69/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
7/56 = 7 × 45/56 × 45 = 315/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
72/45 = 72 × 56/45 × 56 = 4032/2520 - Add the two like fractions:
315/2520 + 4032/2520 = 315 + 4032/2520 = 4347/2520 - 4347/2520 simplified gives 69/40
- So, 7/56 + 72/45 = 69/40
In mixed form: 129/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56+72/45 7/56+72/90 21/56+72/45 35/56+72/45 49/56+72/45