Add 12/18 and 75/7
1st number: 12/18, 2nd number: 10 5/7
12/18 + 75/7 is 239/21.
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,
12/18 = 12 × 7/18 × 7 = 84/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
75/7 = 75 × 18/7 × 18 = 1350/126 - Add the two like fractions:
84/126 + 1350/126 = 84 + 1350/126 = 1434/126 - 1434/126 simplified gives 239/21
- So, 12/18 + 75/7 = 239/21
In mixed form: 118/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+75/7 12/36+75/7 12/18+75/14 36/18+75/7 12/54+75/7 12/18+75/21 60/18+75/7 12/90+75/7 12/18+75/35 84/18+75/7 12/18+75/49