Add 30/90 and 8/84
30/90 + 8/84 is 3/7.
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,
30/90 = 30 × 14/90 × 14 = 420/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
8/84 = 8 × 15/84 × 15 = 120/1260 - Add the two like fractions:
420/1260 + 120/1260 = 420 + 120/1260 = 540/1260 - 540/1260 simplified gives 3/7
- So, 30/90 + 8/84 = 3/7
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