Add 9/45 and 9/63
9/45 + 9/63 is 12/35.
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,
9/45 = 9 × 7/45 × 7 = 63/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
9/63 = 9 × 5/63 × 5 = 45/315 - Add the two like fractions:
63/315 + 45/315 = 63 + 45/315 = 108/315 - 108/315 simplified gives 12/35
- So, 9/45 + 9/63 = 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45+9/63 9/45+18/63 9/90+9/63 27/45+9/63 9/45+27/63 9/45+45/63 63/45+9/63