Add 18/30 and 75/42
1st number: 18/30, 2nd number: 1 33/42
18/30 + 75/42 is 167/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
18/30 = 18 × 7/30 × 7 = 126/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
75/42 = 75 × 5/42 × 5 = 375/210 - Add the two like fractions:
126/210 + 375/210 = 126 + 375/210 = 501/210 - 501/210 simplified gives 167/70
- So, 18/30 + 75/42 = 167/70
In mixed form: 227/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+75/42 18/60+75/42 18/30+75/84 54/30+75/42 18/90+75/42 90/30+75/42