Subtract 9/42 from 9/40
940 - 942 is 3280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
940 = 9 × 2140 × 21 = 189840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
942 = 9 × 2042 × 20 = 180840 - Subtract the two like fractions:
189840 - 180840 = 189 - 180840 = 9840 - After reducing the fraction, the answer is 3280
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