Add 4/15 and 45/56
4/15 + 45/56 is 899/840.
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,
4/15 = 4 × 56/15 × 56 = 224/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
45/56 = 45 × 15/56 × 15 = 675/840 - Add the two like fractions:
224/840 + 675/840 = 224 + 675/840 = 899/840 - So, 4/15 + 45/56 = 899/840
In mixed form: 159/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15+45/56 4/15+90/56 4/30+45/56 12/15+45/56 4/45+45/56 20/15+45/56 4/75+45/56 28/15+45/56