Subtract 20/80 from 42/4
1st number: 10 2/4, 2nd number: 20/80
42/4 - 20/80 is 41/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
42/4 = 42 × 20/4 × 20 = 840/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
20/80 = 20 × 1/80 × 1 = 20/80 - Subtract the two like fractions:
840/80 - 20/80 = 840 - 20/80 = 820/80 - After reducing the fraction, the answer is 41/4
- In mixed form: 101/4
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