Add 3/35 and 84/90
3/35 + 84/90 is 107/105.
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,
3/35 = 3 × 18/35 × 18 = 54/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
84/90 = 84 × 7/90 × 7 = 588/630 - Add the two like fractions:
54/630 + 588/630 = 54 + 588/630 = 642/630 - 642/630 simplified gives 107/105
- So, 3/35 + 84/90 = 107/105
In mixed form: 12/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/35+84/90 3/70+84/90 9/35+84/90 15/35+84/90 21/35+84/90