Add 42/30 and 24/20
1st number: 1 12/30, 2nd number: 1 4/20
42/30 + 24/20 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
42/30 = 42 × 2/30 × 2 = 84/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
24/20 = 24 × 3/20 × 3 = 72/60 - Add the two like fractions:
84/60 + 72/60 = 84 + 72/60 = 156/60 - 156/60 simplified gives 13/5
- So, 42/30 + 24/20 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+24/20 42/30+48/20 42/60+24/20 42/30+24/40 42/30+72/20 42/90+24/20 42/30+24/60