Add 72/80 and 7/27
72/80 + 7/27 is 313/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
72/80 = 72 × 27/80 × 27 = 1944/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
7/27 = 7 × 80/27 × 80 = 560/2160 - Add the two like fractions:
1944/2160 + 560/2160 = 1944 + 560/2160 = 2504/2160 - 2504/2160 simplified gives 313/270
- So, 72/80 + 7/27 = 313/270
In mixed form: 143/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80+14/27 72/80+7/54 72/80+21/27 72/80+7/81 72/80+35/27 72/80+49/27