evaluate the following
Answers
Answer:
a) 103/72
b) 48/21
c) 97/117
d) 138/143
e) 175/77
f) 11/56
Step-by-step explanation:
for doing all these equations, we have to make the denominator same first. and for that we have to find the LCM of the denominators.
a) 5/9 + 9/8 = 40/72 + 63/72 = 103/72
b) 2/7 + 6/3 = 6/21 + 42/21 = 48/21
c) 4/9 + 5/13 = 52/117 + 45/117 = 97/117
d) 3/11 + 9/13 = 39/143 + 99/143 = 138/143
e) 8/7 + 9/11 + 14/77 = 88/77 + 63/77 + 14/77 = 175/77
f) 4/7 - 3/8 = 32/56 - 21/56 = 11/56
Answer:
a) 103/72
b) 48/21
c) 97/117
d) 138/143
e) 175/77
f) 11/56
Step-by-step explanation:
for doing all these equations, we have to make the denominator same first. and for that we have to find the LCM of the denominators.
a) 5/9 + 9/8 = 40/72 + 63/72 = 103/72
b) 2/7 + 6/3 = 6/21 + 42/21 = 48/21
c) 4/9 + 5/13 = 52/117 + 45/117 = 97/117
d) 3/11 + 9/13 = 39/143 + 99/143 = 138/143
e) 8/7 + 9/11 + 14/77 = 88/77 + 63/77 + 14/77 = 175/77
f) 4/7 - 3/8 = 32/56 - 21/56 = 11/56