Solutions by everydaycalculation.com

1^{st} number: 2 0/2, 2^{nd} number: 1 4/8

42 - 128 is 12.

- Find the least common denominator or LCM of the two denominators:

LCM of 2 and 8 is**8** - For the 1st fraction, since 2 × 4 = 8,

42 = 4 × 42 × 4 = 168 - Likewise, for the 2nd fraction, since 8 × 1 = 8,

128 = 12 × 18 × 1 = 128 - Subtract the two fractions:

168 - 128 = 16 - 128 = 48 - After reducing the fraction, the answer is 12

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