Add 20/15 and 42/56
1st number: 1 5/15, 2nd number: 42/56
20/15 + 42/56 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
20/15 = 20 × 56/15 × 56 = 1120/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
42/56 = 42 × 15/56 × 15 = 630/840 - Add the two like fractions:
1120/840 + 630/840 = 1120 + 630/840 = 1750/840 - 1750/840 simplified gives 25/12
- So, 20/15 + 42/56 = 25/12
In mixed form: 21/12
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