Add 20/15 and 21/80
1st number: 1 5/15, 2nd number: 21/80
20/15 + 21/80 is 383/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
20/15 = 20 × 16/15 × 16 = 320/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Add the two like fractions:
320/240 + 63/240 = 320 + 63/240 = 383/240 - So, 20/15 + 21/80 = 383/240
In mixed form: 1143/240
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