Add 42/90 and 9/98
42/90 + 9/98 is 821/1470.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
42/90 = 42 × 49/90 × 49 = 2058/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
9/98 = 9 × 45/98 × 45 = 405/4410 - Add the two like fractions:
2058/4410 + 405/4410 = 2058 + 405/4410 = 2463/4410 - 2463/4410 simplified gives 821/1470
- So, 42/90 + 9/98 = 821/1470
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+9/98 42/90+18/98 42/90+27/98 42/90+45/98 42/90+63/98