Add 70/42 and 36/54
1st number: 1 28/42, 2nd number: 36/54
70/42 + 36/54 is 7/3.
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,
36/54 = 36 × 7/54 × 7 = 252/378 - Add the two like fractions:
630/378 + 252/378 = 630 + 252/378 = 882/378 - 882/378 simplified gives 7/3
- So, 70/42 + 36/54 = 7/3
In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+72/54 70/84+36/54