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Question

Subtract the first rational number from the second in each of the following:

(i) 38,58

(ii) 79,49

(iii) 211,911

(iv)1113,413

(v) 14,38

(vi)23,56

(vii) 67,1314

(viii)833,722

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Solution

(i) 38 from 58=5838=538=28=2÷28÷2=14

(ii) 79 from 49=49(79)=49+79=4+79=119

(iii) 211 from 911=911(211)911+211=9+211=711

(iv) 1113 from 413=4131113=41113=1513

(v) 14 from 38=38(14)=3814=328 (LCM 8,4=8)=58

(vi) 23 from 56=56(23)=56+23=5+46=96=9÷36÷3=32

(vii) 67 from 1314=1314(67)=1314+67=13+1214=14

(viii) 833 from 722=722(833)=21+1666=566


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