Add 40/45 and 42/10
1st number: 40/45, 2nd number: 4 2/10
40/45 + 42/10 is 229/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
40/45 = 40 × 2/45 × 2 = 80/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Add the two like fractions:
80/90 + 378/90 = 80 + 378/90 = 458/90 - 458/90 simplified gives 229/45
- So, 40/45 + 42/10 = 229/45
In mixed form: 54/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45+42/10 40/45+84/10 40/90+42/10 40/45+42/20 40/45+42/30 40/45+42/50 40/45+42/70