Answer :
M-4/25=1/2
FIRST STEP SIMPLIFY
M-1/5=1/2
NEXT FIND LIKE TERMS
M-2/10=5/10
THEN ADD -2/10
M=7/10
FIRST STEP SIMPLIFY
M-1/5=1/2
NEXT FIND LIKE TERMS
M-2/10=5/10
THEN ADD -2/10
M=7/10