Add 4/28 and 20/80
4/28 + 20/80 is 11/28.
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,
4/28 = 4 × 20/28 × 20 = 80/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
20/80 = 20 × 7/80 × 7 = 140/560 - Add the two like fractions:
80/560 + 140/560 = 80 + 140/560 = 220/560 - 220/560 simplified gives 11/28
- So, 4/28 + 20/80 = 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+20/80 4/28+40/80 4/56+20/80 12/28+20/80 4/28+60/80 4/84+20/80 20/28+20/80