Add 42/48 and 18/45
42/48 + 18/45 is 51/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
42/48 = 42 × 15/48 × 15 = 630/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
18/45 = 18 × 16/45 × 16 = 288/720 - Add the two like fractions:
630/720 + 288/720 = 630 + 288/720 = 918/720 - 918/720 simplified gives 51/40
- So, 42/48 + 18/45 = 51/40
In mixed form: 111/40
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