Add 16/42 and 45/81
16/42 + 45/81 is 59/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
16/42 = 16 × 27/42 × 27 = 432/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
45/81 = 45 × 14/81 × 14 = 630/1134 - Add the two like fractions:
432/1134 + 630/1134 = 432 + 630/1134 = 1062/1134 - 1062/1134 simplified gives 59/63
- So, 16/42 + 45/81 = 59/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+45/81 16/42+90/81 16/84+45/81 48/42+45/81 80/42+45/81