Add 42/15 and 42/7
1st number: 2 12/15, 2nd number: 6 0/7
42/15 + 42/7 is 44/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 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 7 × 15 = 105,
42/7 = 42 × 15/7 × 15 = 630/105 - Add the two like fractions:
294/105 + 630/105 = 294 + 630/105 = 924/105 - 924/105 simplified gives 44/5
- So, 42/15 + 42/7 = 44/5
In mixed form: 84/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+42/7 42/15+84/7 42/30+42/7 42/15+42/14 42/45+42/7 42/15+42/21 42/75+42/7 42/15+42/35 42/15+42/49