Add 15/40 and 45/48
15/40 + 45/48 is 21/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 40 × 6 = 240,
15/40 = 15 × 6/40 × 6 = 90/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
45/48 = 45 × 5/48 × 5 = 225/240 - Add the two like fractions:
90/240 + 225/240 = 90 + 225/240 = 315/240 - 315/240 simplified gives 21/16
- So, 15/40 + 45/48 = 21/16
In mixed form: 15/16
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