Add 1/42 and 75/30
1st number: 1/42, 2nd number: 2 15/30
1/42 + 75/30 is 53/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
1/42 = 1 × 5/42 × 5 = 5/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Add the two like fractions:
5/210 + 525/210 = 5 + 525/210 = 530/210 - 530/210 simplified gives 53/21
- So, 1/42 + 75/30 = 53/21
In mixed form: 211/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+75/30 1/84+75/30 1/42+75/60 3/42+75/30 1/42+75/90 5/42+75/30 7/42+75/30