Add 3/90 and 5/84
3/90 + 5/84 is 13/140.
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,
3/90 = 3 × 14/90 × 14 = 42/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
5/84 = 5 × 15/84 × 15 = 75/1260 - Add the two like fractions:
42/1260 + 75/1260 = 42 + 75/1260 = 117/1260 - 117/1260 simplified gives 13/140
- So, 3/90 + 5/84 = 13/140
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