Add 16/10 and 4/81
1st number: 1 6/10, 2nd number: 4/81
16/10 + 4/81 is 668/405.
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,
16/10 = 16 × 81/10 × 81 = 1296/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
4/81 = 4 × 10/81 × 10 = 40/810 - Add the two like fractions:
1296/810 + 40/810 = 1296 + 40/810 = 1336/810 - 1336/810 simplified gives 668/405
- So, 16/10 + 4/81 = 668/405
In mixed form: 1263/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/10+4/81 16/10+8/81 16/20+4/81 48/10+4/81 16/10+12/81 16/30+4/81 80/10+4/81 16/10+20/81 16/50+4/81 16/10+28/81 16/70+4/81