Subtract 1/30 from 28/40
28/40 - 1/30 is 2/3.
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,
28/40 = 28 × 3/40 × 3 = 84/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
1/30 = 1 × 4/30 × 4 = 4/120 - Subtract the two like fractions:
84/120 - 4/120 = 84 - 4/120 = 80/120 - After reducing the fraction, the answer is 2/3
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