Add 10/7 and 18/72
1st number: 1 3/7, 2nd number: 18/72
10/7 + 18/72 is 47/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
10/7 = 10 × 72/7 × 72 = 720/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Add the two like fractions:
720/504 + 126/504 = 720 + 126/504 = 846/504 - 846/504 simplified gives 47/28
- So, 10/7 + 18/72 = 47/28
In mixed form: 119/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/7+18/72 10/7+36/72 10/14+18/72 30/7+18/72 10/7+54/72 10/21+18/72 50/7+18/72 10/7+90/72 10/35+18/72 70/7+18/72 10/49+18/72