Add 18/45 and 54/84
18/45 + 54/84 is 73/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
18/45 = 18 × 28/45 × 28 = 504/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
54/84 = 54 × 15/84 × 15 = 810/1260 - Add the two like fractions:
504/1260 + 810/1260 = 504 + 810/1260 = 1314/1260 - 1314/1260 simplified gives 73/70
- So, 18/45 + 54/84 = 73/70
In mixed form: 13/70
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