Add 30/72 and 98/63, Solve 30/72 + 1 35/63 as a fraction

Add 30/72 and 98/63

1^st number: 30/72, 2^nd number: 1 35/63

30/72 + 98/63 is 71/36.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
98/63 = 98 × 8/63 × 8 = 784/504
Add the two like fractions:
210/504 + 784/504 = 210 + 784/504 = 994/504
994/504 simplified gives 71/36
So, 30/72 + 98/63 = 71/36
In mixed form: 135/36

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad