Subtract 30/84 from 8/10
8/10 - 30/84 is 31/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
8/10 = 8 × 42/10 × 42 = 336/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Subtract the two like fractions:
336/420 - 150/420 = 336 - 150/420 = 186/420 - After reducing the fraction, the answer is 31/70
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