Add 9/42 and 36/30
1st number: 9/42, 2nd number: 1 6/30
9/42 + 36/30 is 99/70.
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,
9/42 = 9 × 5/42 × 5 = 45/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
36/30 = 36 × 7/30 × 7 = 252/210 - Add the two like fractions:
45/210 + 252/210 = 45 + 252/210 = 297/210 - 297/210 simplified gives 99/70
- So, 9/42 + 36/30 = 99/70
In mixed form: 129/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42+36/30 9/42+72/30 9/84+36/30 9/42+36/60 27/42+36/30 9/42+36/90 45/42+36/30 63/42+36/30