Length subtracting

Express in mm: 5 3/10 cm - 2/5 mm

Correct answer:

x =  52 35 = 263/5 mm

Step-by-step explanation:

X1=5103=5+103=105 10+3=1050+3=1053=5.3 cm x1=X1 mm=X1 10  mm=5.3 10  mm=53 mm x2=2/5=52=0.4 mm  x=x1x2=5352=553 552=526552=52652=5263=5263 mm=5253 mm=52.6 mm



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