Add 42/10 and 28/12
1st number: 4 2/10, 2nd number: 2 4/12
42/10 + 28/12 is 98/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
42/10 = 42 × 6/10 × 6 = 252/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Add the two like fractions:
252/60 + 140/60 = 252 + 140/60 = 392/60 - 392/60 simplified gives 98/15
- So, 42/10 + 28/12 = 98/15
In mixed form: 68/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+28/12 42/10+56/12 42/20+28/12 42/10+28/24 42/10+84/12 42/30+28/12 42/10+28/36 42/50+28/12 42/10+28/60 42/70+28/12 42/10+28/84