Add 8/7 and 75/81
1st number: 1 1/7, 2nd number: 75/81
8/7 + 75/81 is 391/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
8/7 = 8 × 81/7 × 81 = 648/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
75/81 = 75 × 7/81 × 7 = 525/567 - Add the two like fractions:
648/567 + 525/567 = 648 + 525/567 = 1173/567 - 1173/567 simplified gives 391/189
- So, 8/7 + 75/81 = 391/189
In mixed form: 213/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7+75/81 8/14+75/81 24/7+75/81 8/21+75/81 40/7+75/81 8/35+75/81 56/7+75/81 8/49+75/81