Add 9/28 and 9/80
9/28 + 9/80 is 243/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
9/28 = 9 × 20/28 × 20 = 180/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
9/80 = 9 × 7/80 × 7 = 63/560 - Add the two like fractions:
180/560 + 63/560 = 180 + 63/560 = 243/560 - So, 9/28 + 9/80 = 243/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/28+9/80 9/28+18/80 9/56+9/80 27/28+9/80 9/28+27/80 9/84+9/80 45/28+9/80 9/28+45/80 63/28+9/80 9/28+63/80