Add 90/70 and 6/36
1st number: 1 20/70, 2nd number: 6/36
90/70 + 6/36 is 61/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
90/70 = 90 × 18/70 × 18 = 1620/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
6/36 = 6 × 35/36 × 35 = 210/1260 - Add the two like fractions:
1620/1260 + 210/1260 = 1620 + 210/1260 = 1830/1260 - 1830/1260 simplified gives 61/42
- So, 90/70 + 6/36 = 61/42
In mixed form: 119/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+12/36 90/70+6/72 90/70+18/36 90/70+30/36 90/70+42/36