Answers

Subtract 42/80 from 98/70

1^st number: 1 28/70, 2^nd number: 42/80

98/70 - 42/80 is 7/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   98/70 = 98 × 8/70 × 8 = 784/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   42/80 = 42 × 7/80 × 7 = 294/560
4. Subtract the two like fractions:
   784/560 - 294/560 = 784 - 294/560 = 490/560
5. After reducing the fraction, the answer is 7/8

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