Subtract 21/80 from 3/10
310 - 2180 is 380.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
310 = 3 × 810 × 8 = 2480 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
2180 = 21 × 180 × 1 = 2180 - Subtract the two like fractions:
2480 - 2180 = 24 - 2180 = 380
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