Add 30/60 and 42/80
30/60 + 42/80 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
30/60 = 30 × 4/60 × 4 = 120/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Add the two like fractions:
120/240 + 126/240 = 120 + 126/240 = 246/240 - 246/240 simplified gives 41/40
- So, 30/60 + 42/80 = 41/40
In mixed form: 11/40
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