Add 14/7 and 20/72
1st number: 2 0/7, 2nd number: 20/72
14/7 + 20/72 is 41/18.
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,
14/7 = 14 × 72/7 × 72 = 1008/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Add the two like fractions:
1008/504 + 140/504 = 1008 + 140/504 = 1148/504 - 1148/504 simplified gives 41/18
- So, 14/7 + 20/72 = 41/18
In mixed form: 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/7+20/72 14/7+40/72 42/7+20/72 14/7+60/72 14/21+20/72 70/7+20/72 14/35+20/72 98/7+20/72 14/49+20/72