Add 18/63 and 49/45
1st number: 18/63, 2nd number: 1 4/45
18/63 + 49/45 is 433/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
49/45 = 49 × 7/45 × 7 = 343/315 - Add the two like fractions:
90/315 + 343/315 = 90 + 343/315 = 433/315 - So, 18/63 + 49/45 = 433/315
In mixed form: 1118/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+49/45 18/63+98/45 18/63+49/90 54/63+49/45 90/63+49/45