Add 7/45 and 56/63
7/45 + 56/63 is 47/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
7/45 = 7 × 7/45 × 7 = 49/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
56/63 = 56 × 5/63 × 5 = 280/315 - Add the two like fractions:
49/315 + 280/315 = 49 + 280/315 = 329/315 - 329/315 simplified gives 47/45
- So, 7/45 + 56/63 = 47/45
In mixed form: 12/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+56/63 7/90+56/63 21/45+56/63 35/45+56/63 49/45+56/63