Add 90/18 and 75/7
1st number: 5 0/18, 2nd number: 10 5/7
90/18 + 75/7 is 110/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
90/18 = 90 × 7/18 × 7 = 630/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
75/7 = 75 × 18/7 × 18 = 1350/126 - Add the two like fractions:
630/126 + 1350/126 = 630 + 1350/126 = 1980/126 - 1980/126 simplified gives 110/7
- So, 90/18 + 75/7 = 110/7
In mixed form: 155/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36+75/7 90/18+75/14 90/54+75/7 90/18+75/21 90/18+75/35 90/18+75/49