Add 12/21 and 40/98
12/21 + 40/98 is 48/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 21 × 14 = 294,
12/21 = 12 × 14/21 × 14 = 168/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
40/98 = 40 × 3/98 × 3 = 120/294 - Add the two like fractions:
168/294 + 120/294 = 168 + 120/294 = 288/294 - 288/294 simplified gives 48/49
- So, 12/21 + 40/98 = 48/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21+40/98 12/21+80/98 12/42+40/98 36/21+40/98 12/63+40/98 60/21+40/98 84/21+40/98