Add 42/16 and 81/15
1st number: 2 10/16, 2nd number: 5 6/15
42/16 + 81/15 is 321/40.
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,
42/16 = 42 × 15/16 × 15 = 630/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
81/15 = 81 × 16/15 × 16 = 1296/240 - Add the two like fractions:
630/240 + 1296/240 = 630 + 1296/240 = 1926/240 - 1926/240 simplified gives 321/40
- So, 42/16 + 81/15 = 321/40
In mixed form: 81/40
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