Add 80/56 and 3/90
1st number: 1 24/56, 2nd number: 3/90
80/56 + 3/90 is 307/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
80/56 = 80 × 45/56 × 45 = 3600/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
3/90 = 3 × 28/90 × 28 = 84/2520 - Add the two like fractions:
3600/2520 + 84/2520 = 3600 + 84/2520 = 3684/2520 - 3684/2520 simplified gives 307/210
- So, 80/56 + 3/90 = 307/210
In mixed form: 197/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56+6/90 80/56+9/90 80/56+15/90 80/56+21/90