Add 12/54 and 21/40
12/54 + 21/40 is 269/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
12/54 = 12 × 20/54 × 20 = 240/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
21/40 = 21 × 27/40 × 27 = 567/1080 - Add the two like fractions:
240/1080 + 567/1080 = 240 + 567/1080 = 807/1080 - 807/1080 simplified gives 269/360
- So, 12/54 + 21/40 = 269/360
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