Add 54/18 and 5/70
1st number: 3 0/18, 2nd number: 5/70
54/18 + 5/70 is 43/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
54/18 = 54 × 35/18 × 35 = 1890/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
5/70 = 5 × 9/70 × 9 = 45/630 - Add the two like fractions:
1890/630 + 45/630 = 1890 + 45/630 = 1935/630 - 1935/630 simplified gives 43/14
- So, 54/18 + 5/70 = 43/14
In mixed form: 31/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+10/70 54/36+5/70 54/18+15/70 54/18+25/70 54/90+5/70 54/18+35/70