Solutions by everydaycalculation.com

1^{st} number: 1/70, 2^{nd} number: 3 0/10

170 - 3010 is -20970.

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

LCM of 70 and 10 is**70**

Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,

170 = 1 × 170 × 1 = 170 - Likewise, for the 2nd fraction, since 10 × 7 = 70,

3010 = 30 × 710 × 7 = 21070 - Subtract the two like fractions:

170 - 21070 = 1 - 21070 = -20970

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