Add 18/45 and 63/7
1st number: 18/45, 2nd number: 9 0/7
18/45 + 63/7 is 47/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
18/45 = 18 × 7/45 × 7 = 126/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
63/7 = 63 × 45/7 × 45 = 2835/315 - Add the two like fractions:
126/315 + 2835/315 = 126 + 2835/315 = 2961/315 - 2961/315 simplified gives 47/5
- So, 18/45 + 63/7 = 47/5
In mixed form: 92/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+63/7 18/90+63/7 18/45+63/14 54/45+63/7 18/45+63/21 90/45+63/7 18/45+63/35 18/45+63/49