Add 2/40 and 45/42
1st number: 2/40, 2nd number: 1 3/42
2/40 + 45/42 is 157/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
2/40 = 2 × 21/40 × 21 = 42/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
45/42 = 45 × 20/42 × 20 = 900/840 - Add the two like fractions:
42/840 + 900/840 = 42 + 900/840 = 942/840 - 942/840 simplified gives 157/140
- So, 2/40 + 45/42 = 157/140
In mixed form: 117/140
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