Add 21/90 and 2/49
21/90 + 2/49 is 403/1470.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
21/90 = 21 × 49/90 × 49 = 1029/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
2/49 = 2 × 90/49 × 90 = 180/4410 - Add the two like fractions:
1029/4410 + 180/4410 = 1029 + 180/4410 = 1209/4410 - 1209/4410 simplified gives 403/1470
- So, 21/90 + 2/49 = 403/1470
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90+2/49 21/90+4/49 21/90+2/98 63/90+2/49 21/90+6/49 21/90+10/49 21/90+14/49