Add 21/14 and 90/35
1st number: 1 7/14, 2nd number: 2 20/35
21/14 + 90/35 is 57/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
90/35 = 90 × 2/35 × 2 = 180/70 - Add the two like fractions:
105/70 + 180/70 = 105 + 180/70 = 285/70 - 285/70 simplified gives 57/14
- So, 21/14 + 90/35 = 57/14
In mixed form: 41/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+90/35 21/28+90/35 21/14+90/70 63/14+90/35 21/42+90/35 21/70+90/35 21/98+90/35