Add 18/45 and 60/63
18/45 + 60/63 is 142/105.
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,
60/63 = 60 × 5/63 × 5 = 300/315 - Add the two like fractions:
126/315 + 300/315 = 126 + 300/315 = 426/315 - 426/315 simplified gives 142/105
- So, 18/45 + 60/63 = 142/105
In mixed form: 137/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+60/63 18/90+60/63 54/45+60/63 90/45+60/63