Add 18/63 and 5/45
18/63 + 5/45 is 25/63.
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,
5/45 = 5 × 7/45 × 7 = 35/315 - Add the two like fractions:
90/315 + 35/315 = 90 + 35/315 = 125/315 - 125/315 simplified gives 25/63
- So, 18/63 + 5/45 = 25/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+5/45 18/63+10/45 18/63+5/90 54/63+5/45 18/63+15/45 90/63+5/45 18/63+25/45 18/63+35/45