Add 42/80 and 45/15
1st number: 42/80, 2nd number: 3 0/15
42/80 + 45/15 is 141/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
45/15 = 45 × 16/15 × 16 = 720/240 - Add the two like fractions:
126/240 + 720/240 = 126 + 720/240 = 846/240 - 846/240 simplified gives 141/40
- So, 42/80 + 45/15 = 141/40
In mixed form: 321/40
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