Medal!
Simplify. Your answer should contain only positive exponents with no fractional exponents in the denominator.

Question

Medal!
Simplify. Your answer should contain only positive exponents with no fractional exponents in the denominator.

anonymous · Answer

$$4m^\frac{ 4 }{ 3 }*m^\frac{ -7 }{ 4 }$$

nnesha · Answer

$$\huge\rm x^m \times x^n = x^{m+n}$$
exponent rule! when u multiply same bases you should ad their exponents

anonymous · Answer

i don't now how to add the fractions. because they've got different denominators

nnesha · Answer

multiply them

nnesha · Answer

$$\frac{ 4 }{ 3 } + \frac{ -7 }{ 4 } = \frac{ ? }{ 3(4) }$$

anonymous · Answer

$$\frac{ -28 }{ 12 }$$

nnesha · Answer

|dw:1433698357618:dw|
4 and 3 are the denominator 
first fraction doesn't have 4 at the denominator so multiply 4 times 4
2nd fraction -7 doesn't have 3 at the denominator so multiply it by 3
same like cross multiplication but don't forget the signs