Solutions by everydaycalculation.com

1^{st} number: 7/20, 2^{nd} number: 1 34/50

720 - 8450 is -133100.

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

LCM of 20 and 50 is**100**

Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,

720 = 7 × 520 × 5 = 35100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,

8450 = 84 × 250 × 2 = 168100 - Subtract the two like fractions:

35100 - 168100 = 35 - 168100 = -133100

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