Add 90/35 and 35/42
1st number: 2 20/35, 2nd number: 35/42
90/35 + 35/42 is 143/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
90/35 = 90 × 6/35 × 6 = 540/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
35/42 = 35 × 5/42 × 5 = 175/210 - Add the two like fractions:
540/210 + 175/210 = 540 + 175/210 = 715/210 - 715/210 simplified gives 143/42
- So, 90/35 + 35/42 = 143/42
In mixed form: 317/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/35+70/42 90/70+35/42 90/35+35/84