Add 7/15 and 42/8
1st number: 7/15, 2nd number: 5 2/8
7/15 + 42/8 is 343/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
7/15 = 7 × 8/15 × 8 = 56/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
42/8 = 42 × 15/8 × 15 = 630/120 - Add the two like fractions:
56/120 + 630/120 = 56 + 630/120 = 686/120 - 686/120 simplified gives 343/60
- So, 7/15 + 42/8 = 343/60
In mixed form: 543/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+42/8 7/15+84/8 7/30+42/8 7/15+42/16 21/15+42/8 7/45+42/8 7/15+42/24 35/15+42/8 7/75+42/8 7/15+42/40 49/15+42/8 7/15+42/56