Add 45/35 and 15/42
1st number: 1 10/35, 2nd number: 15/42
45/35 + 15/42 is 23/14.
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,
45/35 = 45 × 6/35 × 6 = 270/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Add the two like fractions:
270/210 + 75/210 = 270 + 75/210 = 345/210 - 345/210 simplified gives 23/14
- So, 45/35 + 15/42 = 23/14
In mixed form: 19/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/35+15/42 45/35+30/42 45/70+15/42 45/35+15/84 45/35+45/42 45/35+75/42