Add 42/56 and 45/18
1st number: 42/56, 2nd number: 2 9/18
42/56 + 45/18 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
42/56 = 42 × 9/56 × 9 = 378/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
45/18 = 45 × 28/18 × 28 = 1260/504 - Add the two like fractions:
378/504 + 1260/504 = 378 + 1260/504 = 1638/504 - 1638/504 simplified gives 13/4
- So, 42/56 + 45/18 = 13/4
In mixed form: 31/4
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