Add 45/42 and 36/5
1st number: 1 3/42, 2nd number: 7 1/5
45/42 + 36/5 is 579/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
45/42 = 45 × 5/42 × 5 = 225/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
36/5 = 36 × 42/5 × 42 = 1512/210 - Add the two like fractions:
225/210 + 1512/210 = 225 + 1512/210 = 1737/210 - 1737/210 simplified gives 579/70
- So, 45/42 + 36/5 = 579/70
In mixed form: 819/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+36/5 45/42+72/5 45/84+36/5 45/42+36/10 45/42+36/15 45/42+36/25 45/42+36/35