Add 75/54 and 9/42
1st number: 1 21/54, 2nd number: 9/42
75/54 + 9/42 is 101/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
75/54 = 75 × 7/54 × 7 = 525/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
9/42 = 9 × 9/42 × 9 = 81/378 - Add the two like fractions:
525/378 + 81/378 = 525 + 81/378 = 606/378 - 606/378 simplified gives 101/63
- So, 75/54 + 9/42 = 101/63
In mixed form: 138/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/54+18/42 75/54+9/84 75/54+27/42 75/54+45/42 75/54+63/42