Add 15/30 and 45/80
15/30 + 45/80 is 17/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
15/30 = 15 × 8/30 × 8 = 120/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
45/80 = 45 × 3/80 × 3 = 135/240 - Add the two like fractions:
120/240 + 135/240 = 120 + 135/240 = 255/240 - 255/240 simplified gives 17/16
- So, 15/30 + 45/80 = 17/16
In mixed form: 11/16
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