Add 18/80 and 27/28
18/80 + 27/28 is 333/280.
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,
18/80 = 18 × 7/80 × 7 = 126/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
27/28 = 27 × 20/28 × 20 = 540/560 - Add the two like fractions:
126/560 + 540/560 = 126 + 540/560 = 666/560 - 666/560 simplified gives 333/280
- So, 18/80 + 27/28 = 333/280
In mixed form: 153/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+27/28 18/80+54/28 18/80+27/56 54/80+27/28 18/80+81/28 18/80+27/84 90/80+27/28