Add 50/42 and 45/81
1st number: 1 8/42, 2nd number: 45/81
50/42 + 45/81 is 110/63.
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,
50/42 = 50 × 27/42 × 27 = 1350/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
45/81 = 45 × 14/81 × 14 = 630/1134 - Add the two like fractions:
1350/1134 + 630/1134 = 1350 + 630/1134 = 1980/1134 - 1980/1134 simplified gives 110/63
- So, 50/42 + 45/81 = 110/63
In mixed form: 147/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+90/81 50/84+45/81