Answers

Subtract 7/90 from 70/63

1^st number: 1 7/63, 2^nd number: 7/90

70/63 - 7/90 is 31/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   7/90 = 7 × 7/90 × 7 = 49/630
4. Subtract the two like fractions:
   700/630 - 49/630 = 700 - 49/630 = 651/630
5. After reducing the fraction, the answer is 31/30
6. In mixed form: 11/30

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