Add 70/20 and 12/54
1st number: 3 10/20, 2nd number: 12/54
70/20 + 12/54 is 67/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
70/20 = 70 × 27/20 × 27 = 1890/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
12/54 = 12 × 10/54 × 10 = 120/540 - Add the two like fractions:
1890/540 + 120/540 = 1890 + 120/540 = 2010/540 - 2010/540 simplified gives 67/18
- So, 70/20 + 12/54 = 67/18
In mixed form: 313/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20+24/54 70/40+12/54 70/20+36/54 70/60+12/54 70/20+60/54 70/20+84/54