Add 90/42 and 21/35
1st number: 2 6/42, 2nd number: 21/35
90/42 + 21/35 is 96/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
21/35 = 21 × 6/35 × 6 = 126/210 - Add the two like fractions:
450/210 + 126/210 = 450 + 126/210 = 576/210 - 576/210 simplified gives 96/35
- So, 90/42 + 21/35 = 96/35
In mixed form: 226/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+42/35 90/84+21/35 90/42+21/70 90/42+63/35