Add 70/72 and 48/42
1st number: 70/72, 2nd number: 1 6/42
70/72 + 48/42 is 533/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
48/42 = 48 × 12/42 × 12 = 576/504 - Add the two like fractions:
490/504 + 576/504 = 490 + 576/504 = 1066/504 - 1066/504 simplified gives 533/252
- So, 70/72 + 48/42 = 533/252
In mixed form: 229/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+96/42 70/72+48/84