Add 98/10 and 4/81
1st number: 9 8/10, 2nd number: 4/81
98/10 + 4/81 is 3989/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
98/10 = 98 × 81/10 × 81 = 7938/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
4/81 = 4 × 10/81 × 10 = 40/810 - Add the two like fractions:
7938/810 + 40/810 = 7938 + 40/810 = 7978/810 - 7978/810 simplified gives 3989/405
- So, 98/10 + 4/81 = 3989/405
In mixed form: 9344/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/10+8/81 98/20+4/81 98/10+12/81 98/30+4/81 98/10+20/81 98/50+4/81 98/10+28/81 98/70+4/81