Add 63/15 and 75/81
1st number: 4 3/15, 2nd number: 75/81
63/15 + 75/81 is 692/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
63/15 = 63 × 27/15 × 27 = 1701/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
75/81 = 75 × 5/81 × 5 = 375/405 - Add the two like fractions:
1701/405 + 375/405 = 1701 + 375/405 = 2076/405 - 2076/405 simplified gives 692/135
- So, 63/15 + 75/81 = 692/135
In mixed form: 517/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/30+75/81 63/45+75/81 63/75+75/81