Answers

Subtract 6/20 from 9/7

1^st number: 1 2/7, 2^nd number: 6/20

9/7 - 6/20 is 69/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 7 × 20 = 140,
   9/7 = 9 × 20/7 × 20 = 180/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   6/20 = 6 × 7/20 × 7 = 42/140
4. Subtract the two like fractions:
   180/140 - 42/140 = 180 - 42/140 = 138/140
5. After reducing the fraction, the answer is 69/70

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