Add 42/15 and 49/10
1st number: 2 12/15, 2nd number: 4 9/10
42/15 + 49/10 is 77/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
42/15 = 42 × 2/15 × 2 = 84/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
49/10 = 49 × 3/10 × 3 = 147/30 - Add the two like fractions:
84/30 + 147/30 = 84 + 147/30 = 231/30 - 231/30 simplified gives 77/10
- So, 42/15 + 49/10 = 77/10
In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+49/10 42/15+98/10 42/30+49/10 42/15+49/20 42/45+49/10 42/15+49/30 42/75+49/10 42/15+49/50 42/15+49/70