Add 2/90 and 28/70
2/90 + 28/70 is 19/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
2/90 = 2 × 7/90 × 7 = 14/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Add the two like fractions:
14/630 + 252/630 = 14 + 252/630 = 266/630 - 266/630 simplified gives 19/45
- So, 2/90 + 28/70 = 19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90+28/70 2/90+56/70 6/90+28/70 2/90+84/70 10/90+28/70 14/90+28/70