Add 12/63 and 72/18
1st number: 12/63, 2nd number: 4 0/18
12/63 + 72/18 is 88/21.
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,
12/63 = 12 × 2/63 × 2 = 24/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Add the two like fractions:
24/126 + 504/126 = 24 + 504/126 = 528/126 - 528/126 simplified gives 88/21
- So, 12/63 + 72/18 = 88/21
In mixed form: 44/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63+72/18 12/63+72/36 36/63+72/18 12/63+72/54 60/63+72/18 12/63+72/90 84/63+72/18