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Basic Math Examples
1−1a−2a−4
Step 1
Step 1.1
Simplify each term.
Step 1.1.1
Multiply the numerator by the reciprocal of the denominator.
1−(1a−4a−2)
Step 1.1.2
Multiply a−4a−2 by 1.
1−a−4a−2
1−a−4a−2
Step 1.2
Combine into one fraction.
Step 1.2.1
Write 1 as a fraction with a common denominator.
a−2a−2−a−4a−2
Step 1.2.2
Combine the numerators over the common denominator.
a−2−(a−4)a−2
a−2−(a−4)a−2
a−2−(a−4)a−2
Step 2
Step 2.1
Apply the distributive property.
a−2−a−−4a−2
Step 2.2
Multiply −1 by −4.
a−2−a+4a−2
Step 2.3
Subtract a from a.
0−2+4a−2
Step 2.4
Subtract 2 from 0.
−2+4a−2
Step 2.5
Add −2 and 4.
2a−2
2a−2