Add 21/72 and 54/48
1st number: 21/72, 2nd number: 1 6/48
21/72 + 54/48 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
21/72 = 21 × 2/72 × 2 = 42/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
54/48 = 54 × 3/48 × 3 = 162/144 - Add the two like fractions:
42/144 + 162/144 = 42 + 162/144 = 204/144 - 204/144 simplified gives 17/12
- So, 21/72 + 54/48 = 17/12
In mixed form: 15/12
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