Add 70/18 and 54/63
1st number: 3 16/18, 2nd number: 54/63
70/18 + 54/63 is 299/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
54/63 = 54 × 2/63 × 2 = 108/126 - Add the two like fractions:
490/126 + 108/126 = 490 + 108/126 = 598/126 - 598/126 simplified gives 299/63
- So, 70/18 + 54/63 = 299/63
In mixed form: 447/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36+54/63 70/54+54/63 70/90+54/63