Add 36/18 and 90/7
1st number: 2 0/18, 2nd number: 12 6/7
36/18 + 90/7 is 104/7.
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,
36/18 = 36 × 7/18 × 7 = 252/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
90/7 = 90 × 18/7 × 18 = 1620/126 - Add the two like fractions:
252/126 + 1620/126 = 252 + 1620/126 = 1872/126 - 1872/126 simplified gives 104/7
- So, 36/18 + 90/7 = 104/7
In mixed form: 146/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+90/7 36/18+90/14 36/54+90/7 36/18+90/21 36/90+90/7 36/18+90/35 36/18+90/49