Answers

Subtract 90/70 from 54/8

1^st number: 6 6/8, 2^nd number: 1 20/70

54/8 - 90/70 is 153/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 8 × 35 = 280,
   54/8 = 54 × 35/8 × 35 = 1890/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   90/70 = 90 × 4/70 × 4 = 360/280
4. Subtract the two like fractions:
   1890/280 - 360/280 = 1890 - 360/280 = 1530/280
5. After reducing the fraction, the answer is 153/28
6. In mixed form: 513/28

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