Add 56/12 and 84/45
1st number: 4 8/12, 2nd number: 1 39/45
56/12 + 84/45 is 98/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
84/45 = 84 × 4/45 × 4 = 336/180 - Add the two like fractions:
840/180 + 336/180 = 840 + 336/180 = 1176/180 - 1176/180 simplified gives 98/15
- So, 56/12 + 84/45 = 98/15
In mixed form: 68/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/24+84/45 56/12+84/90 56/36+84/45 56/60+84/45 56/84+84/45