How do you add #7\frac { 2} { 5} + 4\frac { 7} { 8}#?

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Answer 1 · 2017-03-13T13:55:50

#63/10#

You first would multiply and then sum:

#14/5+cancel4*7/cancel8^2#

that is equivalent to:

#(28+35)/10#

#63/10#

Answer 2 · 2017-03-13T17:15:21

#12 11/40#

#7 2/5+4 7/8#

#:.=37/5+39/8#

#:.=(296+195)/40#

#:.=491/40#

#:.=12 11/40#