Answers

Subtract 21/70 from 42/8

1^st number: 5 2/8, 2^nd number: 21/70

42/8 - 21/70 is 99/20.

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,
   42/8 = 42 × 35/8 × 35 = 1470/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   21/70 = 21 × 4/70 × 4 = 84/280
4. Subtract the two like fractions:
   1470/280 - 84/280 = 1470 - 84/280 = 1386/280
5. After reducing the fraction, the answer is 99/20
6. In mixed form: 419/20

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