Add 30/75 and 75/63
1st number: 30/75, 2nd number: 1 12/63
30/75 + 75/63 is 167/105.
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,
30/75 = 30 × 21/75 × 21 = 630/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
75/63 = 75 × 25/63 × 25 = 1875/1575 - Add the two like fractions:
630/1575 + 1875/1575 = 630 + 1875/1575 = 2505/1575 - 2505/1575 simplified gives 167/105
- So, 30/75 + 75/63 = 167/105
In mixed form: 162/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/75+75/63 90/75+75/63