Add 42/20 and 24/40
1st number: 2 2/20, 2nd number: 24/40
42/20 + 24/40 is 27/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
42/20 = 42 × 2/20 × 2 = 84/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
24/40 = 24 × 1/40 × 1 = 24/40 - Add the two like fractions:
84/40 + 24/40 = 84 + 24/40 = 108/40 - 108/40 simplified gives 27/10
- So, 42/20 + 24/40 = 27/10
In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+24/40 42/20+48/40 42/40+24/40 42/20+24/80 42/20+72/40 42/60+24/40