Add 8/7 and 45/63
1st number: 1 1/7, 2nd number: 45/63
8/7 + 45/63 is 13/7.
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,
8/7 = 8 × 9/7 × 9 = 72/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
45/63 = 45 × 1/63 × 1 = 45/63 - Add the two like fractions:
72/63 + 45/63 = 72 + 45/63 = 117/63 - 117/63 simplified gives 13/7
- So, 8/7 + 45/63 = 13/7
In mixed form: 16/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7+45/63 8/7+90/63 8/14+45/63 24/7+45/63 8/21+45/63 40/7+45/63 8/35+45/63 56/7+45/63 8/49+45/63