Add 7/45 and 63/56
1st number: 7/45, 2nd number: 1 7/56
7/45 + 63/56 is 461/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
7/45 = 7 × 56/45 × 56 = 392/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
63/56 = 63 × 45/56 × 45 = 2835/2520 - Add the two like fractions:
392/2520 + 2835/2520 = 392 + 2835/2520 = 3227/2520 - 3227/2520 simplified gives 461/360
- So, 7/45 + 63/56 = 461/360
In mixed form: 1101/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+63/56 7/90+63/56 21/45+63/56 35/45+63/56 49/45+63/56