Add 56/12 and 54/45
1st number: 4 8/12, 2nd number: 1 9/45
56/12 + 54/45 is 88/15.
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,
54/45 = 54 × 4/45 × 4 = 216/180 - Add the two like fractions:
840/180 + 216/180 = 840 + 216/180 = 1056/180 - 1056/180 simplified gives 88/15
- So, 56/12 + 54/45 = 88/15
In mixed form: 513/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/24+54/45 56/12+54/90 56/36+54/45 56/60+54/45 56/84+54/45