Subtract 5/21 from 42/50
42/50 - 5/21 is 316/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
42/50 = 42 × 21/50 × 21 = 882/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
5/21 = 5 × 50/21 × 50 = 250/1050 - Subtract the two like fractions:
882/1050 - 250/1050 = 882 - 250/1050 = 632/1050 - After reducing the fraction, the answer is 316/525
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