Add 80/18 and 15/8
1st number: 4 8/18, 2nd number: 1 7/8
80/18 + 15/8 is 455/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
80/18 = 80 × 4/18 × 4 = 320/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
15/8 = 15 × 9/8 × 9 = 135/72 - Add the two like fractions:
320/72 + 135/72 = 320 + 135/72 = 455/72 - So, 80/18 + 15/8 = 455/72
In mixed form: 623/72
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