Add 75/30 and 4/81
1st number: 2 15/30, 2nd number: 4/81
75/30 + 4/81 is 413/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
75/30 = 75 × 27/30 × 27 = 2025/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
4/81 = 4 × 10/81 × 10 = 40/810 - Add the two like fractions:
2025/810 + 40/810 = 2025 + 40/810 = 2065/810 - 2065/810 simplified gives 413/162
- So, 75/30 + 4/81 = 413/162
In mixed form: 289/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/30+8/81 75/60+4/81 75/30+12/81 75/90+4/81 75/30+20/81 75/30+28/81