Add 42/2 and 75/10
1st number: 21 0/2, 2nd number: 7 5/10
42/2 + 75/10 is 57/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
42/2 = 42 × 5/2 × 5 = 210/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
75/10 = 75 × 1/10 × 1 = 75/10 - Add the two like fractions:
210/10 + 75/10 = 210 + 75/10 = 285/10 - 285/10 simplified gives 57/2
- So, 42/2 + 75/10 = 57/2
In mixed form: 281/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+75/10 42/4+75/10 42/2+75/20 42/6+75/10 42/2+75/30 42/10+75/10 42/2+75/50 42/14+75/10 42/2+75/70