Add 75/28 and 18/80
1st number: 2 19/28, 2nd number: 18/80
75/28 + 18/80 is 813/280.
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,
75/28 = 75 × 20/28 × 20 = 1500/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
18/80 = 18 × 7/80 × 7 = 126/560 - Add the two like fractions:
1500/560 + 126/560 = 1500 + 126/560 = 1626/560 - 1626/560 simplified gives 813/280
- So, 75/28 + 18/80 = 813/280
In mixed form: 2253/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/28+36/80 75/56+18/80 75/28+54/80 75/84+18/80 75/28+90/80