Add 72/16 and 90/15
1st number: 4 8/16, 2nd number: 6 0/15
72/16 + 90/15 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
72/16 = 72 × 15/16 × 15 = 1080/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
90/15 = 90 × 16/15 × 16 = 1440/240 - Add the two like fractions:
1080/240 + 1440/240 = 1080 + 1440/240 = 2520/240 - 2520/240 simplified gives 21/2
- So, 72/16 + 90/15 = 21/2
In mixed form: 101/2
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