Add 18/72 and 80/7
1st number: 18/72, 2nd number: 11 3/7
18/72 + 80/7 is 327/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
80/7 = 80 × 72/7 × 72 = 5760/504 - Add the two like fractions:
126/504 + 5760/504 = 126 + 5760/504 = 5886/504 - 5886/504 simplified gives 327/28
- So, 18/72 + 80/7 = 327/28
In mixed form: 1119/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+80/7 18/72+80/14 54/72+80/7 18/72+80/21 90/72+80/7 18/72+80/35 18/72+80/49