Add 54/90 and 75/84
54/90 + 75/84 is 209/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
54/90 = 54 × 14/90 × 14 = 756/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
75/84 = 75 × 15/84 × 15 = 1125/1260 - Add the two like fractions:
756/1260 + 1125/1260 = 756 + 1125/1260 = 1881/1260 - 1881/1260 simplified gives 209/140
- So, 54/90 + 75/84 = 209/140
In mixed form: 169/140
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