Add 45/15 and 9/63
1st number: 3 0/15, 2nd number: 9/63
45/15 + 9/63 is 22/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
45/15 = 45 × 21/15 × 21 = 945/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
9/63 = 9 × 5/63 × 5 = 45/315 - Add the two like fractions:
945/315 + 45/315 = 945 + 45/315 = 990/315 - 990/315 simplified gives 22/7
- So, 45/15 + 9/63 = 22/7
In mixed form: 31/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+9/63 45/15+18/63 45/30+9/63 45/15+27/63 45/15+45/63 45/75+9/63