Subtract 14/45 from 2/42
2/42 - 14/45 is -83/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
2/42 = 2 × 15/42 × 15 = 30/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
14/45 = 14 × 14/45 × 14 = 196/630 - Subtract the two like fractions:
30/630 - 196/630 = 30 - 196/630 = -166/630 - After reducing the fraction, the answer is -83/315
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