Add 45/3 and 42/80
1st number: 15 0/3, 2nd number: 42/80
45/3 + 42/80 is 621/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 3 × 80 = 240,
45/3 = 45 × 80/3 × 80 = 3600/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Add the two like fractions:
3600/240 + 126/240 = 3600 + 126/240 = 3726/240 - 3726/240 simplified gives 621/40
- So, 45/3 + 42/80 = 621/40
In mixed form: 1521/40
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