Answers

Subtract 63/15 from 20/70

1^st number: 20/70, 2^nd number: 4 3/15

20/70 - 63/15 is -137/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 15 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   20/70 = 20 × 3/70 × 3 = 60/210
3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
   63/15 = 63 × 14/15 × 14 = 882/210
4. Subtract the two like fractions:
   60/210 - 882/210 = 60 - 882/210 = -822/210
5. After reducing the fraction, the answer is -137/35

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