Add 80/75 and 3/42
1st number: 1 5/75, 2nd number: 3/42
80/75 + 3/42 is 239/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
80/75 = 80 × 14/75 × 14 = 1120/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
3/42 = 3 × 25/42 × 25 = 75/1050 - Add the two like fractions:
1120/1050 + 75/1050 = 1120 + 75/1050 = 1195/1050 - 1195/1050 simplified gives 239/210
- So, 80/75 + 3/42 = 239/210
In mixed form: 129/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75+6/42 80/75+3/84 80/75+9/42 80/75+15/42 80/75+21/42