Add 12/45 and 21/54
12/45 + 21/54 is 59/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
12/45 = 12 × 6/45 × 6 = 72/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Add the two like fractions:
72/270 + 105/270 = 72 + 105/270 = 177/270 - 177/270 simplified gives 59/90
- So, 12/45 + 21/54 = 59/90
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