Answers

Subtract 15/90 from 42/8

1^st number: 5 2/8, 2^nd number: 15/90

42/8 - 15/90 is 61/12.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 8 × 45 = 360,
   42/8 = 42 × 45/8 × 45 = 1890/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   15/90 = 15 × 4/90 × 4 = 60/360
4. Subtract the two like fractions:
   1890/360 - 60/360 = 1890 - 60/360 = 1830/360
5. After reducing the fraction, the answer is 61/12
6. In mixed form: 51/12

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