Add 21/48 and 20/27
21/48 + 20/27 is 509/432.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 27 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 48 × 9 = 432,
21/48 = 21 × 9/48 × 9 = 189/432 - Likewise, for the 2nd fraction, since 27 × 16 = 432,
20/27 = 20 × 16/27 × 16 = 320/432 - Add the two like fractions:
189/432 + 320/432 = 189 + 320/432 = 509/432 - So, 21/48 + 20/27 = 509/432
In mixed form: 177/432
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