Add 27/15 and 70/56
1st number: 1 12/15, 2nd number: 1 14/56
27/15 + 70/56 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
27/15 = 27 × 56/15 × 56 = 1512/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
70/56 = 70 × 15/56 × 15 = 1050/840 - Add the two like fractions:
1512/840 + 1050/840 = 1512 + 1050/840 = 2562/840 - 2562/840 simplified gives 61/20
- So, 27/15 + 70/56 = 61/20
In mixed form: 31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+70/56 27/30+70/56 81/15+70/56 27/45+70/56 27/75+70/56