Add 42/35 and 36/90
1st number: 1 7/35, 2nd number: 36/90
42/35 + 36/90 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
42/35 = 42 × 18/35 × 18 = 756/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
36/90 = 36 × 7/90 × 7 = 252/630 - Add the two like fractions:
756/630 + 252/630 = 756 + 252/630 = 1008/630 - 1008/630 simplified gives 8/5
- So, 42/35 + 36/90 = 8/5
In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+36/90 42/35+72/90 42/70+36/90