Add 70/21 and 54/4
1st number: 3 7/21, 2nd number: 13 2/4
70/21 + 54/4 is 101/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
70/21 = 70 × 4/21 × 4 = 280/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
54/4 = 54 × 21/4 × 21 = 1134/84 - Add the two like fractions:
280/84 + 1134/84 = 280 + 1134/84 = 1414/84 - 1414/84 simplified gives 101/6
- So, 70/21 + 54/4 = 101/6
In mixed form: 165/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+54/4 70/21+54/8 70/63+54/4 70/21+54/12 70/21+54/20 70/21+54/28