Add 9/63 and 20/18
1st number: 9/63, 2nd number: 1 2/18
9/63 + 20/18 is 79/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
9/63 = 9 × 2/63 × 2 = 18/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
20/18 = 20 × 7/18 × 7 = 140/126 - Add the two like fractions:
18/126 + 140/126 = 18 + 140/126 = 158/126 - 158/126 simplified gives 79/63
- So, 9/63 + 20/18 = 79/63
In mixed form: 116/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/63+20/18 9/63+40/18 9/63+20/36 27/63+20/18 9/63+60/18 9/63+20/54 45/63+20/18 9/63+20/90