Add 2/35 and 21/90
2/35 + 21/90 is 61/210.
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,
2/35 = 2 × 18/35 × 18 = 36/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Add the two like fractions:
36/630 + 147/630 = 36 + 147/630 = 183/630 - 183/630 simplified gives 61/210
- So, 2/35 + 21/90 = 61/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/35+21/90 2/35+42/90 2/70+21/90 6/35+21/90 2/35+63/90 10/35+21/90 14/35+21/90