Add 28/63 and 8/7
1st number: 28/63, 2nd number: 1 1/7
28/63 + 8/7 is 100/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
28/63 = 28 × 1/63 × 1 = 28/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
8/7 = 8 × 9/7 × 9 = 72/63 - Add the two like fractions:
28/63 + 72/63 = 28 + 72/63 = 100/63 - So, 28/63 + 8/7 = 100/63
In mixed form: 137/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63+8/7 28/63+16/7 28/63+8/14 84/63+8/7 28/63+24/7 28/63+8/21 28/63+40/7 28/63+8/35 28/63+56/7 28/63+8/49