Add 50/45 and 42/70
1st number: 1 5/45, 2nd number: 42/70
50/45 + 42/70 is 77/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
50/45 = 50 × 14/45 × 14 = 700/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
42/70 = 42 × 9/70 × 9 = 378/630 - Add the two like fractions:
700/630 + 378/630 = 700 + 378/630 = 1078/630 - 1078/630 simplified gives 77/45
- So, 50/45 + 42/70 = 77/45
In mixed form: 132/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+84/70 50/90+42/70