Add 42/60 and 21/16
1st number: 42/60, 2nd number: 1 5/16
42/60 + 21/16 is 161/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
42/60 = 42 × 4/60 × 4 = 168/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
21/16 = 21 × 15/16 × 15 = 315/240 - Add the two like fractions:
168/240 + 315/240 = 168 + 315/240 = 483/240 - 483/240 simplified gives 161/80
- So, 42/60 + 21/16 = 161/80
In mixed form: 21/80
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