Answers

Subtract 20/70 from 49/40

1^st number: 1 9/40, 2^nd number: 20/70

49/40 - 20/70 is 263/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 40 × 7 = 280,
   49/40 = 49 × 7/40 × 7 = 343/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   20/70 = 20 × 4/70 × 4 = 80/280
4. Subtract the two like fractions:
   343/280 - 80/280 = 343 - 80/280 = 263/280

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