Add 18/45 and 1/63
18/45 + 1/63 is 131/315.
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,
18/45 = 18 × 7/45 × 7 = 126/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
1/63 = 1 × 5/63 × 5 = 5/315 - Add the two like fractions:
126/315 + 5/315 = 126 + 5/315 = 131/315 - So, 18/45 + 1/63 = 131/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+1/63 18/45+2/63 18/90+1/63 54/45+1/63 18/45+3/63 90/45+1/63 18/45+5/63 18/45+7/63