Add 42/10 and 42/45
1st number: 4 2/10, 2nd number: 42/45
42/10 + 42/45 is 77/15.
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,
42/10 = 42 × 9/10 × 9 = 378/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Add the two like fractions:
378/90 + 84/90 = 378 + 84/90 = 462/90 - 462/90 simplified gives 77/15
- So, 42/10 + 42/45 = 77/15
In mixed form: 52/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+42/45 42/10+84/45 42/20+42/45 42/10+42/90 42/30+42/45 42/50+42/45 42/70+42/45