Add 64/12 and 70/42
1st number: 5 4/12, 2nd number: 1 28/42
64/12 + 70/42 is 7/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
64/12 = 64 × 7/12 × 7 = 448/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
70/42 = 70 × 2/42 × 2 = 140/84 - Add the two like fractions:
448/84 + 140/84 = 448 + 140/84 = 588/84 - 588/84 simplified gives 7/1
- So, 64/12 + 70/42 = 7/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/24+70/42 64/12+70/84 64/36+70/42 64/60+70/42 64/84+70/42