Add 15/30 and 2/80
15/30 + 2/80 is 21/40.
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,
2/80 = 2 × 3/80 × 3 = 6/240 - Add the two like fractions:
120/240 + 6/240 = 120 + 6/240 = 126/240 - 126/240 simplified gives 21/40
- So, 15/30 + 2/80 = 21/40
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