Add 49/40 and 12/42
1st number: 1 9/40, 2nd number: 12/42
49/40 + 12/42 is 423/280.
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,
49/40 = 49 × 21/40 × 21 = 1029/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
12/42 = 12 × 20/42 × 20 = 240/840 - Add the two like fractions:
1029/840 + 240/840 = 1029 + 240/840 = 1269/840 - 1269/840 simplified gives 423/280
- So, 49/40 + 12/42 = 423/280
In mixed form: 1143/280
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