Add 42/35 and 3/90
1st number: 1 7/35, 2nd number: 3/90
42/35 + 3/90 is 37/30.
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,
3/90 = 3 × 7/90 × 7 = 21/630 - Add the two like fractions:
756/630 + 21/630 = 756 + 21/630 = 777/630 - 777/630 simplified gives 37/30
- So, 42/35 + 3/90 = 37/30
In mixed form: 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+3/90 42/35+6/90 42/70+3/90 42/35+9/90 42/35+15/90 42/35+21/90