Add 28/18 and 21/24
1st number: 1 10/18, 2nd number: 21/24
28/18 + 21/24 is 175/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
28/18 = 28 × 4/18 × 4 = 112/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
21/24 = 21 × 3/24 × 3 = 63/72 - Add the two like fractions:
112/72 + 63/72 = 112 + 63/72 = 175/72 - So, 28/18 + 21/24 = 175/72
In mixed form: 231/72
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