Answers

Subtract 45/70 from 30/20

1^st number: 1 10/20, 2^nd number: 45/70

30/20 - 45/70 is 6/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   30/20 = 30 × 7/20 × 7 = 210/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   45/70 = 45 × 2/70 × 2 = 90/140
4. Subtract the two like fractions:
   210/140 - 90/140 = 210 - 90/140 = 120/140
5. After reducing the fraction, the answer is 6/7

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