Subtract 20/80 from 21/6
1st number: 3 3/6, 2nd number: 20/80
21/6 - 20/80 is 13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 6 × 40 = 240,
21/6 = 21 × 40/6 × 40 = 840/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Subtract the two like fractions:
840/240 - 60/240 = 840 - 60/240 = 780/240 - After reducing the fraction, the answer is 13/4
- In mixed form: 31/4
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