Add 75/28 and 90/80
1st number: 2 19/28, 2nd number: 1 10/80
75/28 + 90/80 is 213/56.
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,
90/80 = 90 × 7/80 × 7 = 630/560 - Add the two like fractions:
1500/560 + 630/560 = 1500 + 630/560 = 2130/560 - 2130/560 simplified gives 213/56
- So, 75/28 + 90/80 = 213/56
In mixed form: 345/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/56+90/80 75/84+90/80