Subtract 1/80 from 42/50
42/50 - 1/80 is 331/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 50 × 8 = 400,
42/50 = 42 × 8/50 × 8 = 336/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
1/80 = 1 × 5/80 × 5 = 5/400 - Subtract the two like fractions:
336/400 - 5/400 = 336 - 5/400 = 331/400
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