Add 21/54 and 18/48
21/54 + 18/48 is 55/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 48 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
21/54 = 21 × 8/54 × 8 = 168/432 - Likewise, for the 2nd fraction, since 48 × 9 = 432,
18/48 = 18 × 9/48 × 9 = 162/432 - Add the two like fractions:
168/432 + 162/432 = 168 + 162/432 = 330/432 - 330/432 simplified gives 55/72
- So, 21/54 + 18/48 = 55/72
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