Add 75/54 and 90/7
1st number: 1 21/54, 2nd number: 12 6/7
75/54 + 90/7 is 1795/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 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 7 × 54 = 378,
90/7 = 90 × 54/7 × 54 = 4860/378 - Add the two like fractions:
525/378 + 4860/378 = 525 + 4860/378 = 5385/378 - 5385/378 simplified gives 1795/126
- So, 75/54 + 90/7 = 1795/126
In mixed form: 1431/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/54+90/14 75/54+90/21 75/54+90/35 75/54+90/49