Add 42/15 and 80/35
1st number: 2 12/15, 2nd number: 2 10/35
42/15 + 80/35 is 178/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
42/15 = 42 × 7/15 × 7 = 294/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
80/35 = 80 × 3/35 × 3 = 240/105 - Add the two like fractions:
294/105 + 240/105 = 294 + 240/105 = 534/105 - 534/105 simplified gives 178/35
- So, 42/15 + 80/35 = 178/35
In mixed form: 53/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+80/35 42/30+80/35 42/15+80/70 42/45+80/35 42/75+80/35