Add 72/4 and 42/10
1st number: 18 0/4, 2nd number: 4 2/10
72/4 + 42/10 is 111/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
72/4 = 72 × 5/4 × 5 = 360/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
42/10 = 42 × 2/10 × 2 = 84/20 - Add the two like fractions:
360/20 + 84/20 = 360 + 84/20 = 444/20 - 444/20 simplified gives 111/5
- So, 72/4 + 42/10 = 111/5
In mixed form: 221/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+84/10 72/8+42/10 72/4+42/20 72/12+42/10 72/4+42/30 72/20+42/10 72/4+42/50 72/28+42/10 72/4+42/70