Add 42/15 and 70/35
1st number: 2 12/15, 2nd number: 2 0/35
42/15 + 70/35 is 24/5.
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,
70/35 = 70 × 3/35 × 3 = 210/105 - Add the two like fractions:
294/105 + 210/105 = 294 + 210/105 = 504/105 - 504/105 simplified gives 24/5
- So, 42/15 + 70/35 = 24/5
In mixed form: 44/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+70/35 42/30+70/35 42/45+70/35 42/75+70/35