Add 42/35 and 9/42
1st number: 1 7/35, 2nd number: 9/42
42/35 + 9/42 is 99/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
42/35 = 42 × 6/35 × 6 = 252/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
9/42 = 9 × 5/42 × 5 = 45/210 - Add the two like fractions:
252/210 + 45/210 = 252 + 45/210 = 297/210 - 297/210 simplified gives 99/70
- So, 42/35 + 9/42 = 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: 84/35+9/42 42/35+18/42 42/70+9/42 42/35+9/84 42/35+27/42 42/35+45/42 42/35+63/42