Subtract 30/8 from 7/45
1st number: 7/45, 2nd number: 3 6/8
7/45 - 30/8 is -647/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
7/45 = 7 × 8/45 × 8 = 56/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
30/8 = 30 × 45/8 × 45 = 1350/360 - Subtract the two like fractions:
56/360 - 1350/360 = 56 - 1350/360 = -1294/360 - After reducing the fraction, the answer is -647/180
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