Add 1/7 and 80/72
1st number: 1/7, 2nd number: 1 8/72
1/7 + 80/72 is 79/63.
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,
1/7 = 1 × 72/7 × 72 = 72/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
80/72 = 80 × 7/72 × 7 = 560/504 - Add the two like fractions:
72/504 + 560/504 = 72 + 560/504 = 632/504 - 632/504 simplified gives 79/63
- So, 1/7 + 80/72 = 79/63
In mixed form: 116/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7+80/72 1/14+80/72 3/7+80/72 1/21+80/72 5/7+80/72 1/35+80/72 1/49+80/72