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A R I T H M E T I K. the arithmetic of vulgar fractions, the operation being ■ n r——6.3$ fiiarter and eafier in the decimal than in the vulgar way. .36,')638.$S( This we lhall illuftrate by a few examples. 00 6.3$ L. s. d. 36)632.50(17.5694=17 ix 4-fI. Addition. 36- •• Ex. i. What is the fum of i+yl. ? 272 252 .91^=18 4 Ex. 2. What is the fum of i4-|+i8y+£ of ^ C. I C. 14-1=14.875 i8-f = 18.6666 iof4= _ . 34.1^66 = 34c e/4 o i84II. Sultrattion. Ex. 1. From | fubtradl -f L l = -75 It=-$33 s. d. .41^=8 4 Ex. 2. From 4 of 4 fubtratt 4 of 4 lb. Troy.. lb.
- of’=^ = .583-3
4©f4= 4 =.125 02. •458a = 5 10 III. Multiplication*. Ex. Multiply 19-^ by 22 -J feet, F. i9A - - l - , =19-58$ 224=2 2..a= T: • 201 19583* 3916^66 9)3936.250 Sq.f. fq.in,. 437.36^=437 52. II. Divijion.. Ex.. Divide 6-r'V by -nr,
250 216 340 324 160 144 /fo/? of Three Direft. Decimal praflice is frequently the Ihorteft and eaiieft' method of operation in the rule of three. Examp. I. If C. 3 : 1 : 14 of raifins coft L. 10 i 2 : 6, what will 6. C. 3 Q^coft at that rate ? C. %.lb.. L.. s. d. C. Vulgar ftate 3 1 14:10 2 6 :: 6 3 Decimal ftate 3.375 : ia.125 :: 6.75 6.75 50625 70875 60750 3.*3 75)68.3 4375 (20.25=20 5: 6750-•• 8437 6750 16875 16875 Examp. II. If a wedge of gold, weighing 14 IB; 3 oz„ 8 dw. coft L. 514, 4 s. what is that per ounce ? Vulgar;
