Subtract 28/10 from 30/75
1st number: 30/75, 2nd number: 2 8/10
30/75 - 28/10 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 10 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
30/75 = 30 × 2/75 × 2 = 60/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
28/10 = 28 × 15/10 × 15 = 420/150 - Subtract the two like fractions:
60/150 - 420/150 = 60 - 420/150 = -360/150 - After reducing the fraction, the answer is -12/5
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