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प्रश्न
Find the value of:
1.35 + 1.5
योग
उत्तर
Let x = 1.35
⇒ 10x = 13.5 ....(i)
⇒ 100x = 135.5 ....(ii)
Subtracting (i) a=from (ii),
90x = 122
⇒ x = `(122)/(90)`
= `(61)/(45)`
Let y = 1.5 ....(iii)
⇒ 10y = 15.5 ....(iv)
⇒ 9y = 14
⇒ y = `(14)/(9)`
∴ 1.35 + 1.5 = x + y
= `(61)/(45) + (14)/(9)`
= `(61 xx 1 + 14 xx 5)/(45)`
= `(61 + 70)/(45)`
= `(131)/(45)`
= 2.91
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