Add 42/48 and 2/20
42/48 + 2/20 is 39/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
2/20 = 2 × 12/20 × 12 = 24/240 - Add the two like fractions:
210/240 + 24/240 = 210 + 24/240 = 234/240 - 234/240 simplified gives 39/40
- So, 42/48 + 2/20 = 39/40
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