Add 42/56 and 60/45
1st number: 42/56, 2nd number: 1 15/45
42/56 + 60/45 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
42/56 = 42 × 45/56 × 45 = 1890/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
60/45 = 60 × 56/45 × 56 = 3360/2520 - Add the two like fractions:
1890/2520 + 3360/2520 = 1890 + 3360/2520 = 5250/2520 - 5250/2520 simplified gives 25/12
- So, 42/56 + 60/45 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+60/45 42/56+60/90