Add 2/90 and 81/84
2/90 + 81/84 is 1243/1260.
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,
2/90 = 2 × 14/90 × 14 = 28/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
81/84 = 81 × 15/84 × 15 = 1215/1260 - Add the two like fractions:
28/1260 + 1215/1260 = 28 + 1215/1260 = 1243/1260 - So, 2/90 + 81/84 = 1243/1260
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