Add 75/80 and 27/28
75/80 + 27/28 is 213/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
75/80 = 75 × 7/80 × 7 = 525/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
27/28 = 27 × 20/28 × 20 = 540/560 - Add the two like fractions:
525/560 + 540/560 = 525 + 540/560 = 1065/560 - 1065/560 simplified gives 213/112
- So, 75/80 + 27/28 = 213/112
In mixed form: 1101/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+54/28 75/80+27/56 75/80+81/28 75/80+27/84