Add 50/90 and 21/98
50/90 + 21/98 is 97/126.
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,
50/90 = 50 × 49/90 × 49 = 2450/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
21/98 = 21 × 45/98 × 45 = 945/4410 - Add the two like fractions:
2450/4410 + 945/4410 = 2450 + 945/4410 = 3395/4410 - 3395/4410 simplified gives 97/126
- So, 50/90 + 21/98 = 97/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+42/98 50/90+63/98