Add 15/40 and 30/60
15/40 + 30/60 is 7/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
30/60 = 30 × 2/60 × 2 = 60/120 - Add the two like fractions:
45/120 + 60/120 = 45 + 60/120 = 105/120 - 105/120 simplified gives 7/8
- So, 15/40 + 30/60 = 7/8
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