Add 42/45 and 42/35
1st number: 42/45, 2nd number: 1 7/35
42/45 + 42/35 is 32/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
42/45 = 42 × 7/45 × 7 = 294/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
42/35 = 42 × 9/35 × 9 = 378/315 - Add the two like fractions:
294/315 + 378/315 = 294 + 378/315 = 672/315 - 672/315 simplified gives 32/15
- So, 42/45 + 42/35 = 32/15
In mixed form: 22/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+42/35 42/45+84/35 42/90+42/35 42/45+42/70