Add 30/75 and 4/81
30/75 + 4/81 is 182/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 75 × 27 = 2025,
30/75 = 30 × 27/75 × 27 = 810/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
4/81 = 4 × 25/81 × 25 = 100/2025 - Add the two like fractions:
810/2025 + 100/2025 = 810 + 100/2025 = 910/2025 - 910/2025 simplified gives 182/405
- So, 30/75 + 4/81 = 182/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/75+4/81 30/75+8/81 90/75+4/81 30/75+12/81 30/75+20/81 30/75+28/81