Add 80/18 and 4/28
1st number: 4 8/18, 2nd number: 4/28
80/18 + 4/28 is 289/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
80/18 = 80 × 14/18 × 14 = 1120/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
4/28 = 4 × 9/28 × 9 = 36/252 - Add the two like fractions:
1120/252 + 36/252 = 1120 + 36/252 = 1156/252 - 1156/252 simplified gives 289/63
- So, 80/18 + 4/28 = 289/63
In mixed form: 437/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+8/28 80/36+4/28 80/18+4/56 80/18+12/28 80/54+4/28 80/18+4/84 80/18+20/28 80/90+4/28