Subtract 84/42 from 16/30
1st number: 16/30, 2nd number: 2 0/42
16/30 - 84/42 is -22/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
16/30 = 16 × 7/30 × 7 = 112/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
84/42 = 84 × 5/42 × 5 = 420/210 - Subtract the two like fractions:
112/210 - 420/210 = 112 - 420/210 = -308/210 - After reducing the fraction, the answer is -22/15
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