Add 42/56 and 15/45
42/56 + 15/45 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
42/56 = 42 × 45/56 × 45 = 1890/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
15/45 = 15 × 56/45 × 56 = 840/2520 - Add the two like fractions:
1890/2520 + 840/2520 = 1890 + 840/2520 = 2730/2520 - 2730/2520 simplified gives 13/12
- So, 42/56 + 15/45 = 13/12
In mixed form: 11/12
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