Add 7/80 and 18/28
7/80 + 18/28 is 409/560.
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,
7/80 = 7 × 7/80 × 7 = 49/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
18/28 = 18 × 20/28 × 20 = 360/560 - Add the two like fractions:
49/560 + 360/560 = 49 + 360/560 = 409/560 - So, 7/80 + 18/28 = 409/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/80+18/28 7/80+36/28 7/80+18/56 21/80+18/28 7/80+54/28 7/80+18/84 35/80+18/28 7/80+90/28 49/80+18/28