Add 75/10 and 5/81
1st number: 7 5/10, 2nd number: 5/81
75/10 + 5/81 is 1225/162.
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,
75/10 = 75 × 81/10 × 81 = 6075/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
5/81 = 5 × 10/81 × 10 = 50/810 - Add the two like fractions:
6075/810 + 50/810 = 6075 + 50/810 = 6125/810 - 6125/810 simplified gives 1225/162
- So, 75/10 + 5/81 = 1225/162
In mixed form: 791/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/10+10/81 75/20+5/81 75/10+15/81 75/30+5/81 75/10+25/81 75/50+5/81 75/10+35/81 75/70+5/81