Add 45/21 and 9/63
1st number: 2 3/21, 2nd number: 9/63
45/21 + 9/63 is 16/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
45/21 = 45 × 3/21 × 3 = 135/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
9/63 = 9 × 1/63 × 1 = 9/63 - Add the two like fractions:
135/63 + 9/63 = 135 + 9/63 = 144/63 - 144/63 simplified gives 16/7
- So, 45/21 + 9/63 = 16/7
In mixed form: 22/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+9/63 45/21+18/63 45/42+9/63 45/21+27/63 45/63+9/63 45/21+45/63