Add 40/98 and 15/81
40/98 + 15/81 is 785/1323.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 81 is 7938
Next, find the equivalent fraction of both fractional numbers with denominator 7938 - For the 1st fraction, since 98 × 81 = 7938,
40/98 = 40 × 81/98 × 81 = 3240/7938 - Likewise, for the 2nd fraction, since 81 × 98 = 7938,
15/81 = 15 × 98/81 × 98 = 1470/7938 - Add the two like fractions:
3240/7938 + 1470/7938 = 3240 + 1470/7938 = 4710/7938 - 4710/7938 simplified gives 785/1323
- So, 40/98 + 15/81 = 785/1323
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/98+15/81 40/98+30/81 40/98+45/81 40/98+75/81