Add 42/15 and 27/72
1st number: 2 12/15, 2nd number: 27/72
42/15 + 27/72 is 127/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
42/15 = 42 × 24/15 × 24 = 1008/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Add the two like fractions:
1008/360 + 135/360 = 1008 + 135/360 = 1143/360 - 1143/360 simplified gives 127/40
- So, 42/15 + 27/72 = 127/40
In mixed form: 37/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+27/72 42/15+54/72 42/30+27/72 42/15+81/72 42/45+27/72 42/75+27/72