Add 12/3 and 90/63
1st number: 4 0/3, 2nd number: 1 27/63
12/3 + 90/63 is 38/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 3 × 21 = 63,
12/3 = 12 × 21/3 × 21 = 252/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
90/63 = 90 × 1/63 × 1 = 90/63 - Add the two like fractions:
252/63 + 90/63 = 252 + 90/63 = 342/63 - 342/63 simplified gives 38/7
- So, 12/3 + 90/63 = 38/7
In mixed form: 53/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3+90/63 12/6+90/63 36/3+90/63 12/9+90/63 60/3+90/63 12/15+90/63 84/3+90/63 12/21+90/63