Add 30/81 and 16/45
30/81 + 16/45 is 98/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
30/81 = 30 × 5/81 × 5 = 150/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
16/45 = 16 × 9/45 × 9 = 144/405 - Add the two like fractions:
150/405 + 144/405 = 150 + 144/405 = 294/405 - 294/405 simplified gives 98/135
- So, 30/81 + 16/45 = 98/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/81+16/45 30/81+32/45 30/81+16/90 90/81+16/45 30/81+48/45 30/81+80/45