Add 56/40 and 2/21
1st number: 1 16/40, 2nd number: 2/21
56/40 + 2/21 is 157/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 21 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
56/40 = 56 × 21/40 × 21 = 1176/840 - Likewise, for the 2nd fraction, since 21 × 40 = 840,
2/21 = 2 × 40/21 × 40 = 80/840 - Add the two like fractions:
1176/840 + 80/840 = 1176 + 80/840 = 1256/840 - 1256/840 simplified gives 157/105
- So, 56/40 + 2/21 = 157/105
In mixed form: 152/105
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