Answers

Subtract 42/70 from 50/20

1^st number: 2 10/20, 2^nd number: 42/70

50/20 - 42/70 is 19/10.

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,
   50/20 = 50 × 7/20 × 7 = 350/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   42/70 = 42 × 2/70 × 2 = 84/140
4. Subtract the two like fractions:
   350/140 - 84/140 = 350 - 84/140 = 266/140
5. After reducing the fraction, the answer is 19/10
6. In mixed form: 19/10

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