Add 98/81 and 4/40
1st number: 1 17/81, 2nd number: 4/40
98/81 + 4/40 is 1061/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
98/81 = 98 × 40/81 × 40 = 3920/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
4/40 = 4 × 81/40 × 81 = 324/3240 - Add the two like fractions:
3920/3240 + 324/3240 = 3920 + 324/3240 = 4244/3240 - 4244/3240 simplified gives 1061/810
- So, 98/81 + 4/40 = 1061/810
In mixed form: 1251/810
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/81+8/40 98/81+4/80 98/81+12/40 98/81+20/40 98/81+28/40