Add 10/75 and 42/81
10/75 + 42/81 is 88/135.
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,
10/75 = 10 × 27/75 × 27 = 270/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
42/81 = 42 × 25/81 × 25 = 1050/2025 - Add the two like fractions:
270/2025 + 1050/2025 = 270 + 1050/2025 = 1320/2025 - 1320/2025 simplified gives 88/135
- So, 10/75 + 42/81 = 88/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/75+42/81 10/75+84/81 30/75+42/81 50/75+42/81 70/75+42/81