Add 40/10 and 42/45
1st number: 4 0/10, 2nd number: 42/45
40/10 + 42/45 is 74/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
40/10 = 40 × 9/10 × 9 = 360/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Add the two like fractions:
360/90 + 84/90 = 360 + 84/90 = 444/90 - 444/90 simplified gives 74/15
- So, 40/10 + 42/45 = 74/15
In mixed form: 414/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+42/45 40/10+84/45 40/20+42/45 40/10+42/90 40/30+42/45 40/50+42/45 40/70+42/45