Add 80/75 and 7/63
1st number: 1 5/75, 2nd number: 7/63
80/75 + 7/63 is 53/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
80/75 = 80 × 21/75 × 21 = 1680/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
7/63 = 7 × 25/63 × 25 = 175/1575 - Add the two like fractions:
1680/1575 + 175/1575 = 1680 + 175/1575 = 1855/1575 - 1855/1575 simplified gives 53/45
- So, 80/75 + 7/63 = 53/45
In mixed form: 18/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75+14/63 80/75+21/63 80/75+35/63 80/75+49/63