Subtract 10/30 from 21/40
2140 - 1030 is 23120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
2140 = 21 × 340 × 3 = 63120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
1030 = 10 × 430 × 4 = 40120 - Subtract the two like fractions:
63120 - 40120 = 63 - 40120 = 23120
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