Subtract 15/90 from 42/8
1st number: 5 2/8, 2nd number: 15/90
42/8 - 15/90 is 61/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
42/8 = 42 × 45/8 × 45 = 1890/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
15/90 = 15 × 4/90 × 4 = 60/360 - Subtract the two like fractions:
1890/360 - 60/360 = 1890 - 60/360 = 1830/360 - After reducing the fraction, the answer is 61/12
- In mixed form: 51/12
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