EASY WAY TO CALCULATE PERCENTAGES

ORDINARY FRACTIONS AND DECIMAL FRACTIONS

Any given percentage can be written either in the form of a decimal fraction or an ordinary fraction .If one can be remember the conversion of a fraction to a percentage and vice-versa, speed of calculations can be improved. Some of the important conversions that one has to remember are

Important conversions of Ordinary Fractions to Decimal Fractions
1/2=50%	2/6=33.33%	2/8=25%	6/9=66.66%	9/10=90%	1/12=8.33%
1/3=33.33%	3/6=50%	3/8=37.5%	7/9=77.77%	1/11=9.09%	2/12=16.67%
2/3=66.67%	4/6=66.67%	4/8=50%	8/9=88.88%	2/11=18.18%	3/12=25%
1/4=25%	5/6=83.33%	5/8=62.5%	1/10=10%	3/11=27.27%	4/12=33.33%
2/4=50%	1/7=14.28%	6/8=75%	2/10=20%	4/11=36.36%	5/12=41.67%
3/4=75%	2/7=28.57%	7/8=87.5%	3/10=30%	5/11=45.45%	6/12=50%
1/5=20%	3/7=42.85%	1/9=11.11%	4/10=40%	6/11=54.54%	7/12=58.33%
2/5=40%	4/7=57.14%	2/9=22.22%	5/10=50%	7/11=63.63%	8/12=66.67%
3/5=60%	5/7=71.72%	3/9=33.33%	6/10=60%	8/11=72.72%	9/12=75%
4/5=80%	6/7=85.71%	4/9=44.44%	7/10=70%	9/11=81.81%	10/12=83.33%
1/6=16.67%	1/8=12.5%	5/9=55.55%	8/10=80%	10/11=90.9%	11/12=91.67%

These conversions will prove to be useful during calculations like

37.5% * 960= 3/8 *960=360

28.75% *1470 =2/7*1470=420