Add 28/7 and 12/63
1st number: 4 0/7, 2nd number: 12/63
28/7 + 12/63 is 88/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
28/7 = 28 × 9/7 × 9 = 252/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
12/63 = 12 × 1/63 × 1 = 12/63 - Add the two like fractions:
252/63 + 12/63 = 252 + 12/63 = 264/63 - 264/63 simplified gives 88/21
- So, 28/7 + 12/63 = 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: 56/7+12/63 28/7+24/63 28/14+12/63 84/7+12/63 28/7+36/63 28/21+12/63 28/7+60/63 28/35+12/63 28/7+84/63 28/49+12/63