Add 42/10 and 7/15
1st number: 4 2/10, 2nd number: 7/15
42/10 + 7/15 is 14/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
42/10 = 42 × 3/10 × 3 = 126/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
7/15 = 7 × 2/15 × 2 = 14/30 - Add the two like fractions:
126/30 + 14/30 = 126 + 14/30 = 140/30 - 140/30 simplified gives 14/3
- So, 42/10 + 7/15 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+7/15 42/10+14/15 42/20+7/15 42/10+7/30 42/10+21/15 42/30+7/15 42/10+7/45 42/10+35/15 42/50+7/15 42/10+7/75 42/10+49/15 42/70+7/15