Add 54/15 and 90/16
1st number: 3 9/15, 2nd number: 5 10/16
54/15 + 90/16 is 369/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
54/15 = 54 × 16/15 × 16 = 864/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
90/16 = 90 × 15/16 × 15 = 1350/240 - Add the two like fractions:
864/240 + 1350/240 = 864 + 1350/240 = 2214/240 - 2214/240 simplified gives 369/40
- So, 54/15 + 90/16 = 369/40
In mixed form: 99/40
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