Add 75/63 and 18/7
1st number: 1 12/63, 2nd number: 2 4/7
75/63 + 18/7 is 79/21.
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,
75/63 = 75 × 1/63 × 1 = 75/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
18/7 = 18 × 9/7 × 9 = 162/63 - Add the two like fractions:
75/63 + 162/63 = 75 + 162/63 = 237/63 - 237/63 simplified gives 79/21
- So, 75/63 + 18/7 = 79/21
In mixed form: 316/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/63+36/7 75/63+18/14 75/63+54/7 75/63+18/21 75/63+90/7 75/63+18/35 75/63+18/49