Subtract 7/72 from 2/70
2/70 - 7/72 is -173/2520.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
2/70 = 2 × 36/70 × 36 = 72/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
7/72 = 7 × 35/72 × 35 = 245/2520 - Subtract the two like fractions:
72/2520 - 245/2520 = 72 - 245/2520 = -173/2520
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