Solutions by everydaycalculation.com

1^{st} number: 1 5/10, 2^{nd} number: 1 23/40

1510 - 6340 is -340.

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

LCM of 10 and 40 is**40**

Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,

1510 = 15 × 410 × 4 = 6040 - Likewise, for the 2nd fraction, since 40 × 1 = 40,

6340 = 63 × 140 × 1 = 6340 - Subtract the two like fractions:

6040 - 6340 = 60 - 6340 = -340

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