Add 42/45 and 70/14
1st number: 42/45, 2nd number: 5 0/14
42/45 + 70/14 is 89/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
42/45 = 42 × 14/45 × 14 = 588/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
70/14 = 70 × 45/14 × 45 = 3150/630 - Add the two like fractions:
588/630 + 3150/630 = 588 + 3150/630 = 3738/630 - 3738/630 simplified gives 89/15
- So, 42/45 + 70/14 = 89/15
In mixed form: 514/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+70/14 42/90+70/14 42/45+70/28 42/45+70/42 42/45+70/98