Add 75/20 and 42/10
1st number: 3 15/20, 2nd number: 4 2/10
75/20 + 42/10 is 159/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
75/20 = 75 × 1/20 × 1 = 75/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
42/10 = 42 × 2/10 × 2 = 84/20 - Add the two like fractions:
75/20 + 84/20 = 75 + 84/20 = 159/20 - So, 75/20 + 42/10 = 159/20
In mixed form: 719/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/20+84/10 75/40+42/10 75/20+42/20 75/60+42/10 75/20+42/30 75/20+42/50 75/20+42/70