Subtract 2/42 from 28/45
28/45 - 2/42 is 181/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
28/45 = 28 × 14/45 × 14 = 392/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
2/42 = 2 × 15/42 × 15 = 30/630 - Subtract the two like fractions:
392/630 - 30/630 = 392 - 30/630 = 362/630 - After reducing the fraction, the answer is 181/315
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