Add 12/63 and 18/45
12/63 + 18/45 is 62/105.
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,
12/63 = 12 × 5/63 × 5 = 60/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
18/45 = 18 × 7/45 × 7 = 126/315 - Add the two like fractions:
60/315 + 126/315 = 60 + 126/315 = 186/315 - 186/315 simplified gives 62/105
- So, 12/63 + 18/45 = 62/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63+18/45 12/63+36/45 12/63+18/90 36/63+18/45 12/63+54/45 60/63+18/45 12/63+90/45 84/63+18/45