Add 70/63 and 54/12
1st number: 1 7/63, 2nd number: 4 6/12
70/63 + 54/12 is 101/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
70/63 = 70 × 4/63 × 4 = 280/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
54/12 = 54 × 21/12 × 21 = 1134/252 - Add the two like fractions:
280/252 + 1134/252 = 280 + 1134/252 = 1414/252 - 1414/252 simplified gives 101/18
- So, 70/63 + 54/12 = 101/18
In mixed form: 511/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63+54/24 70/63+54/36 70/63+54/60 70/63+54/84