Add 42/10 and 28/4
1st number: 4 2/10, 2nd number: 7 0/4
42/10 + 28/4 is 56/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
42/10 = 42 × 2/10 × 2 = 84/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
28/4 = 28 × 5/4 × 5 = 140/20 - Add the two like fractions:
84/20 + 140/20 = 84 + 140/20 = 224/20 - 224/20 simplified gives 56/5
- So, 42/10 + 28/4 = 56/5
In mixed form: 111/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+28/4 42/10+56/4 42/20+28/4 42/10+28/8 42/10+84/4 42/30+28/4 42/10+28/12 42/50+28/4 42/10+28/20 42/70+28/4