Add 70/42 and 42/54
1st number: 1 28/42, 2nd number: 42/54
70/42 + 42/54 is 22/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
70/42 = 70 × 9/42 × 9 = 630/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Add the two like fractions:
630/378 + 294/378 = 630 + 294/378 = 924/378 - 924/378 simplified gives 22/9
- So, 70/42 + 42/54 = 22/9
In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+84/54 70/84+42/54