Add 63/28 and 18/15
1st number: 2 7/28, 2nd number: 1 3/15
63/28 + 18/15 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
63/28 = 63 × 15/28 × 15 = 945/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
18/15 = 18 × 28/15 × 28 = 504/420 - Add the two like fractions:
945/420 + 504/420 = 945 + 504/420 = 1449/420 - 1449/420 simplified gives 69/20
- So, 63/28 + 18/15 = 69/20
In mixed form: 39/20
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