Answers

Subtract 70/63 from 90/10

1^st number: 9 0/10, 2^nd number: 1 7/63

90/10 - 70/63 is 71/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 10 × 63 = 630,
   90/10 = 90 × 63/10 × 63 = 5670/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
4. Subtract the two like fractions:
   5670/630 - 700/630 = 5670 - 700/630 = 4970/630
5. After reducing the fraction, the answer is 71/9
6. In mixed form: 78/9

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