Subtract 15/50 from 42/70
42/70 - 15/50 is 3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
42/70 = 42 × 5/70 × 5 = 210/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
15/50 = 15 × 7/50 × 7 = 105/350 - Subtract the two like fractions:
210/350 - 105/350 = 210 - 105/350 = 105/350 - After reducing the fraction, the answer is 3/10
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