Answers

Subtract 9/70 from 20/15

1^st number: 1 5/15, 2^nd number: 9/70

20/15 - 9/70 is 253/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   20/15 = 20 × 14/15 × 14 = 280/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   9/70 = 9 × 3/70 × 3 = 27/210
4. Subtract the two like fractions:
   280/210 - 27/210 = 280 - 27/210 = 253/210
5. In mixed form: 143/210

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