Add 42/12 and 75/30
1st number: 3 6/12, 2nd number: 2 15/30
42/12 + 75/30 is 6/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
75/30 = 75 × 2/30 × 2 = 150/60 - Add the two like fractions:
210/60 + 150/60 = 210 + 150/60 = 360/60 - 360/60 simplified gives 6/1
- So, 42/12 + 75/30 = 6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+75/30 42/24+75/30 42/12+75/60 42/36+75/30 42/12+75/90 42/60+75/30 42/84+75/30