Calculate: a) 1/10 and + 7/10 and b) 1/100 hectares + 4/100 hectares c) 127/1000 km + 123/1000 km d) 17/1000 t + 983/1000 t

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a) 1/10 and + 7/10 and =8/10a =4/5a b) 1/100 hectares + 4/100 hectares =5/100ga =1/20na c) 127/1000 km + 123/1000 km =300/1000km =3/10km d) 17/1000 t + 983/1000 t =1000/1000t =1t
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Answer add