Add 18/42 and 56/40
1st number: 18/42, 2nd number: 1 16/40
18/42 + 56/40 is 64/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
18/42 = 18 × 20/42 × 20 = 360/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
56/40 = 56 × 21/40 × 21 = 1176/840 - Add the two like fractions:
360/840 + 1176/840 = 360 + 1176/840 = 1536/840 - 1536/840 simplified gives 64/35
- So, 18/42 + 56/40 = 64/35
In mixed form: 129/35
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